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Alpha jets, part of the Patrouille Acrobatique de France, leave trails of smoke in the colours of the French national flag during an international D-Day commemoration ceremony on the beach of Ouistreham, Normandy, on June 6, 2014, marking the 70th anniversary of the World War II Allied landings in Normandy. AFP PHOTO / GUILLAUME SOUVANT/AFP/Getty Images ( 530457228 )

World War II military vehicles are displayed on the beach of Arromanches, France, Friday, June 6, 2014, as part of D-Day commemorations. World leaders and veterans gathered by the beaches of Normandy, northern France, on Friday to mark the 70th anniversary of the World War II D-Day landings. (AP Photo/Claude Paris) ( France D-Day )

French President Francois Hollande, right, speaks with U.S. President Barack Obama as British Prime Minister David Cameron, left, looks on during the D-Day commemoration at the Ouistreham beach, western France, Friday, June 6, 2014. (AP Photo/Christophe Ena, Pool) ( France D-Day )

Army soldiers from Fort Story and Fort Eustis participate in an amphibious demonstration during a D-Day 70th anniversary ceremony at Joint Expeditionary Base Little Creek in Virginia Beach, Va., on June 6, 2014. Several D-Day veterans were in attendance. (AP Photo/The Virginian-Pilot, Vicki Cronis-Nohe) ( D Day VA )

Army private Kendrick Brown holds the company flag as he stands with soldiers of the 11th Transportation Battalion based out of Fort Story during the D-Day 70th anniversary ceremony at Joint Expeditionary Base Little Creek in Virginia Beach, Va.,, on Friday, June 6, 2014. (AP Photo/The Virginian-Pilot, Vicki Cronis-Nohe) ( D Day VA )

WWII military vehicles and enthusiasts muster on Gold Beach at Arromanche to commemorate the 70th anniversary of the D-Day landings on June 6, 2014 in Arromanches Les Bains, France. (Photo by Christopher Furlong/Getty Images) ( 450162992 )

American World War II veteran Donald Marks, 90, shows his French Legion of Honor Chevalier medal during the 70th anniversary D-Day commemoration at the WWII Memorial on the National Mall June 6, 2014 in Washington, DC. Marks served with the 3104th Signal Service Battalion during the invasion of Normandy by allied troops that turned the tide of the war. (Photo by Chip Somodevilla/Getty Images) ( 450172516 )

An honor guard prepares to participate in the 70th anniversary D-Day commemoration at the WWII Memorial on the National Mall June 6, 2014 in Washington, DC. Dozens of WWII veterans participated in the ceremony commemorating the invasion of Normandy by allied troops that turned the tide of the war. (Photo by Chip Somodevilla/Getty Images) ( 450173274 )

American World War II veterans from Rhode Island participate in the 70th anniversary D-Day commemoration at the WWII Memorial on the National Mall June 6, 2014 in Washington, DC. Dozens of WWII veterans participated in the ceremony commemorating the invasion of Normandy by allied troops that turned the tide of the war. (Photo by Chip Somodevilla/Getty Images) ( 450173280 )

The Normandy American Cemetery on the 70th anniversary of D-Day June 6, 2014 in Colleville-sur-Mer, France. (Photo by Antoine Antoniol/Getty Images) ( 450174772 )

Prince Charles, Prince of Wales, Camilla, Duchess of Cornwall and Queen Elizabeth ll attend a service at Bayeux Cemetary during D-Day 70 Commemorations on June 6, 2014 in Bayeux, France. (Photo by Murray Sanders - Pool/Getty Images) ( 450173652 )

French planes trailing red, white and blue pass over the main international ceremony commemorating the 70th anniversary of the D-Day invasion with 17 heads of state at Sword Beach on June 6, 2014 at Ouistreham, France. (Photo by Sean Gallup/Getty Images) ( 450175128 )

Dancers perform at the main international ceremony commemorating the 70th anniversary of the World War II D-Day invasion with 17 heads of state at Sword Beach on June 6, 2014 at Ouistreham, France. (Photo by Sean Gallup/Getty Images) ( 450175202 )

Dancers perform at the main international ceremony commemorating the 70th anniversary of the World War II D-Day invasion with 17 heads of state at Sword Beach on June 6, 2014 at Ouistreham, France. (Photo by Sean Gallup/Getty Images) ( 450175228 )

A video screen shows images of veterans during the International Ceremony at Sword Beach to commemorate the 70th anniversary of the D-Day Invasion on June 6, 2014 in Ouistreham, France. (Photo by Peter Macdiarmid/Getty Images) ( 450175992 )

Dancers perform at the main international ceremony commemorating the 70th anniversary of the World War II D-Day invasion with 17 heads of state at Sword Beach on June 6, 2014 at Ouistreham, France. (Photo by Sean Gallup/Getty Images) ( 450176494 )

Catherine, Duchess of Cambridge meets veterans for tea before attending the Commemoration of the 70th anniversary of the Normandy Landings at Gold Beach on June 6, 2014 in Arromanches, France. (Photo by Jamie Wiseman - Pool/Getty Images) ( 450179086 )

Three helicopters flies before drops rose petals over the statue of liberty during the Commemorating 70th flies Anniversary of D-Day on June 06, 2014 in New York City. Three helicopters have showered 1 million rose petals on the Statue during a event organized by the organization "The French Will Never Forget" to mark the 70th anniversary of World War II D-Day landings. (Photo by Kena Betancur/Getty Images) ( 450183218 )

Rose petals drops over the statue of liberty during the Commemorating 70th Anniversary of D-Day on June 06, 2014 in New York City. Three helicopters have showered 1 million rose petals on the Statue during a event organized by the organization "The French Will Never Forget" to mark the 70th anniversary of World War II D-Day landings. (Photo by Kena Betancur/Getty Images) ( 450180902 )

Normandy veterans attend a parade at Arrowmanches-Les-Bains during D-Day 70 Commemorations on June 6, 2014 near Bayeux, France. (Photo by Matt Cardy/Getty Images) ( 450183836 )

The Battle of Britain Memorrial flight passes flags at Arrowmanches-Les-Bains during D-Day 70 Commemorations on June 6, 2014 near Bayeux, France. (Photo by Matt Cardy/Getty Images) ( 450183848 )

Joseph Kellsey, 91, who was in the Royal Marines on Sword Beach on D-Day greets people he walks on the beach at Arrowmanches-Les-Bains during D-Day 70 Commemorations on June 6, 2014 near Bayeux, France. (Photo by Matt Cardy/Getty Images) ( 450183856 )

Queen Elizabeth II shares a joke with King Harald of Norway as she watches a Ceremony to Commemorate D-Day 70 on Sword Beach on June 6, 2014 in Ouistreham, France. (Photo by Chris Jackson/Getty Images) ( 450184482 )

Re-enactors storm Gold Beach from a Royal Marine Landing craft during the 70th anniversary of the D-Day landings parade on June 6, 2014 in Arromanches Les Bains, France. (Photo by Christopher Furlong/Getty Images) ( 450184528 )

The Patrouille de France aerobatic team performs during the D-Day commemoration at the Ouistreham beach, western France, Friday, June 6, 2014. World leaders and veterans gathered by the beaches of Normandy on Friday to mark the 70th anniversary of World War Two's D-Day landings. (AP Photo/Christophe Ena, Pool) ( France D-Day )

Baseball Hall of Famer Yogi Berra enters, as he is honored by the U.S. Navy for his service 70 years ago during the D-Day Invasion, at a ceremony at the Yogi Berra Museum in Montclair, N.J. on Friday, June 6, 2014. (AP Photo/Rich Schultz) ( D-Day Yogi Berra Baseball )

Veterans sing "God Save The Queen" at an event in Arromanches-les-Bains, western France, Friday, June 6, 2014, marking the 70th anniversary of the World War II Allied landings in Normandy. World leaders and veterans gathered by the beaches of Normandy on Friday to mark the 70th anniversary of World War Two's D-Day landings. (AP Photo/Leon Neal, Pool) ( France D-Day )

The USS Constitution, or "Old Ironsides," the US Navy's oldest commissioned ship fires a 17-gun volley in front of Coast Guard Station Boston as the ship is towed back to its berth at the Charlestown Navy Yard Friday, June 6, 2014 in Boston. The Constitution was towed to Castle Island and back in honor of the 70th Anniversary of D-Day. The steeple of The Old North Church is visible behind the ship at center. (AP Photo/Stephan Savoia) ( D-Day Boston )

Colored smoke fills the sky as WWII veterans stand to attention flanked by children during an international ceremony marking the 70th anniversary of the Allied landings on D-Day on Sword Beach in Ouistreham, in Normandy, France, Friday, June 6 June 2014. World leaders and veterans gathered by the beaches of Normandy on Friday to mark the 70th anniversary of World War Two's D-Day landings. (AP Photo/Ian Langsdon, Pool) ( France D-Day )

WWII veterans and officials attend a a D-Day commemoration ceremony for veterans in Arromanches-les-Bains, Normandy, on June 6, 2014, marking the 70th anniversary of the World War II Allied landings in Normandy. AFP PHOTO / THOMAS BREGARDIS/AFP/Getty Images ( 530461723 )

An onlooker waves an American flag as World War II military vehicles are displayed on the beach of Arromanches, France, Friday, June 6, 2014, as part of D-Day commemorations. World leaders and veterans gathered by the beaches of Normandy, northern France, on Friday to mark the 70th anniversary of the World War II D-Day landings. (AP Photo/Claude Paris) ( France D-Day )

Kate the Duchess of Cambridge attends a ceremony in honor of Britain's WWII veterans, as part of D-Day commemoration, in Arromanches, western France , Friday June 6, 2014. Gone are the screaming shells, seasick soldiers and bloodied waters of 1944. (AP Photo/Thibault Camus) ( France Britain Royals )

Britain's Prince William, Duke of Cambridge, lays a wreath at an event for veterans in Arromanches-les-Bains, western France, Friday, June 6, 2014, marking the 70th anniversary of the World War II Allied landings in Normandy. (AP Photo/Leon Neal, Pool) ( France D-Day )

Actors perform during an international D-Day commemoration ceremony on the beach of Ouistreham, Normandy, on June 6, 2014, marking the 70th anniversary of the World War II Allied landings in Normandy. AFP PHOTO / POOL / IAN LANGSDON/AFP/Getty Images ( 530458840 )

Artists perform during the international D-Day commemoration ceremony in Ouistreham, in Normandy, on June 6, 2014, marking the 70th anniversary of the World War II Allied landings in Normandy. AFP PHOTO / DAMIEN MEYER/AFP/Getty Images ( 530457444 )

The New York City fireboat sprays colored water into the New York Harbor June 6, 2014 in New York. Thousands gathered on the Liberty Island to participate in ceremonies commemorating the 70th anniversary of D-Day. AFP PHOTO/Don EMMERT/AFP/Getty Images ( 530458428 )

US President Barack Obama (R) laughs with Queen Maxima of the Netherlands at the international D-Day commemoration ceremony in Ouistreham, on June 6, 2014, marking the 70th anniversary of the World War II Allied landings in Normandy. AFP PHOTO / POOL/ALAIN JOCARD/AFP/Getty Images ( 530459890 )

WWII Veterans salute during the playing of "Taps" at a ceremony with U.S. President Barack Obama at the Normandy American Cemetery on the 70th anniversary of D-Day June 6, 2014 in Colleville-sur-Mer, France. June 6th is the 70th anniversary of the D-Day landings that saw 156,000 troops from the allied countries including the United States and the United Kingdom join forces to launch an attack on the beaches of Normandy, these assaults are credited with the eventual defeat of Nazi Germany. (Photo by Win McNamee/Getty Images) ( 450167460 )

An American flag is placed in the sand of Omaha Beach, western France, Friday, June 6, 2014. Veterans and Normandy residents are paying tribute to the thousands who gave their lives in the D-Day invasion of Nazi-occupied France 70 years ago. World leaders and dignitaries including President Barack Obama and Queen Elizabeth II will gather to honor the more than 150,000 American, British, Canadian and other Allied D-Day troops who risked and gave their lives to defeat Adolf Hitler's Third Reich. (AP Photo/Thibault Camus) ( APTOPIX France D-Day Commemorations )

U.S. President Barack Obama, center, and French President Francois Hollande, right, smile next to World War II veteran Kenneth "Rock" Merritt as they arrive for the official lunch at Benouville castle, in Normandy, France, Friday, June 6, 2014. (Regis Duvignau, pool) ( France D-Day )

People wearing WWII British uniforms stand in front of 22.000 British national flags on June 6, 2014 in Asnelles, Normandy, during a ceremony on the "Gold beach" where British troops landed on June 6, 1944 during the Operation Overlord. AFP PHOTO / JOEL SAGET/AFP/Getty Images ( 530447840 )

A piper plays a lament on Gold Beach as landing craft from the Royal Marines arrive at Arromanche on June 6, 2014 in Arromanches Les Bains, France. (Photo by Christopher Furlong/Getty Images) ( 450154382 )

D-day veterans Frederick Carrier (L), 89, and James McDonald Hamby, 90 of Lenoir, North Carolina, listen to the playing of the U.S. national anthem at the U.S. Ceremony on June 5, 2014 at Utah Beach, France. (Photo by Sean Gallup/Getty Images) ( 450119684 )

World War II veteran of the U.S. army 29th Infantry Division, Don McCarthy, 90, from Rhode Island, center, arrives for a D-Day commemoration, on Omaha Beach, western France, Friday June 6, 2014. Veterans and Normandy residents are paying tribute to the thousands who gave their lives in the D-Day invasion of Nazi-occupied France 70 years ago. (AP Photo/Thibault Camus) ( CORRECTION France D-Day Commemorations )

People visit World War II landing crafts on the Arromanches beach, Normandy, on June 6, 2014 during the ceremonies marking the 70th anniversary of the Operation Overlord. AFP PHOTO / JOEL SAGETJOEL SAGET/AFP/Getty Images ( 530451322 )

Prince Charles, Prince of Wales and Camilla, Duchess of Cornwall meet President Barak Obama of the United States during a Ceremony to Commemorate D-Day 70 on Sword Beach on June 6, 2014 in Ouistreham, France. (Photo by Chris Jackson/Getty Images) ( 450170226 )

Britain's Prince Charles, center and his wife Camilla, the Duchess of Cornwall, attend a bell-naming ceremony during a British D-Day commemoration ceremony in Bayeux Cathedral, northern France, Friday, June 6, 2014. World leaders and veterans gathered by the beaches of Normandy on Friday to mark the 70th anniversary of World War Two's D-Day landings. (AP Photo/Leon Neal, Pool ( France D-Day )

D-Day veteran Bill Price, aged 99, who celebrates his 100th birthday on July 24, poses on Gold Beach for well wishers after the last ever flag raising ceremony by the Surrey Normandy Veterans Association on June 6, 2014 in Arromanches Les Bains, France. (Photo by Christopher Furlong/Getty Images) ( 450154150 )

D-Day veteran Frederick Carrier, 89, who served in the 1st Engineer Special Brigade of the U.S. Army, landed at Utah Beach and is from New York City, attends the U.S. D-Day Ceremony on June 5, 2014 at Utah Beach, France. Carrier says he designed the monument, which sits on top of a former German bunker, and built it with the help of 12 German prisoners of war in October, 1944, and that he hid three bottles of Calvados inside.(Photo by Sean Gallup/Getty Images) ( 450151246 )

From left, World War II veterans of the U.S. 29th Infantry Division, Hal Baumgarten, 90 from Pennsylvania, Steve Melnikoff, 94, from Maryland, Don McCarthy, 90 from Rhode Island, and Morley Piper, 90, from Massachusetts, attend a D-Day commemoration, on Omaha Beach, western France , (AP Photo/Thibault Camus) ( CORRECTION France D-Day Commemorations )

D-Day veteran Travis Winfree, 89, who served in the 29th Infantry Division of the U.S. Army, landed at Omaha Beach and is from Hempstead, Texas, attends the U.S. D-Day Ceremony on June 5, 2014 at Utah Beach, France. (Photo by Sean Gallup/Getty Images) ( 450151256 )

D-Day veteran Bill Price, aged 99, who celebrates his 100th birthday on July 24, poses on Gold Beach for well wishers after the last ever flag raising ceremony by the Surrey Normandy Veterans Association on June 6, 2014 in Arromanches Les Bains, France. (Photo by Christopher Furlong/Getty Images) ( 450154154 )

A military re-enactor watches events on Gold Beach at Arromanche to commemorate the 70th anniversary of the D-Day landings on June 6, 2014 in Arromanches Les Bains, France. (Photo by Christopher Furlong/Getty Images) ( 450162954 )

Queen Elizabeth II lays a wreath at the foot of the Cross of Sacrifice in the centre of Commonwealth War Graves Commission Cemetery during a service of remembrance on June 6, 2014 in Bayeux, France. (Photo by Jonathan Brady - Pool/Getty Images) ( 450163466 )

WWII Veterans salute during the playing of "Taps" at a ceremony with U.S. President Barack Obama at the Normandy American Cemetery on the 70th anniversary of D-Day June 6, 2014 in Colleville-sur-Mer, France. (Photo by Win McNamee/Getty Images) ( 450163146 )

Normandy veteran, Ken Scott 98, who was an infantry sergeant with the Durham Light Infantry on Gold Beach on D-Day looks at headstones in the cemetery following a service at Bayeux Cemetary during D-Day 70th anniversary commemorations on June 6, 2014 in Bayeux, France. (Photo by Matt Cardy/Getty Images) ( 450163692 )

Prime Minister David Cameron stops to chat with veterans at Bayeux Cemetery during D-Day 70th anniversary commemorations on June 6, 2014 in Bayeux, France. (Photo by Matt Cardy/Getty Images) ( 450163956 )

U.S. President Barack Obama joins WWII Veterans during the playing of the national anthem at a ceremony at the Normandy American Cemetery on the 70th anniversary of D-Day June 6, 2014 in Colleville-sur-Mer, France. (Photo by Win McNamee/Getty Images) ( 450164106 )

U.S. President Barack Obama joins WWII Veterans during a ceremony at the Normandy American Cemetery on the 70th anniversary of D-Day June 6, 2014 in Colleville-sur-Mer, France. (Photo by Antoine Antoniol/Getty Images) ( 450166018 )

U.S. Secretary of State John Kerry (R) speaks with Army Chief of Staff Ray Odierno (L) at a ceremony on the 70th anniversary of D-Day at the Normandy American Cemetery June 6, 2014 in Colleville-sur-Mer, France. (Photo by Win McNamee/Getty Images) ( 450167392 )

WWII Veterans help each other up during a round of applause from the audience at a ceremony with U.S. President Barack Obama at the Normandy American Cemetery on the 70th anniversary of D-Day June 6, 2014 in Colleville-sur-Mer, France. (Photo by Win McNamee/Getty Images) ( 450167420 )

Prince Charles, Prince of Wales and Camilla, Duchess of Cornwall meet President Barak Obama of the United States during a Ceremony to Commemorate D-Day 70 on Sword Beach on June 6, 2014 in Ouistreham, France. (Photo by Chris Jackson/Getty Images) ( 450169858 )

Members of the French Gendarmerie stand at attention to an international D-Day commemoration ceremony on the beach of Ouistreham, Normandy, on June 6, 2014, marking the 70th anniversary of the World War II Allied landings in Normandy. AFP PHOTO / GUILLAUME SOUVANT/AFP/Getty Images ( 530452170 )

Russian President Vladimir Putin and German Chancellor Angela Merkel attend the main international ceremony with 17 heads of state at Sword Beach on June 6, 2014 at Ouistreham, France. (Photo by Sean Gallup/Getty Images) ( 450170090 )

Britain's Queen Elizabeth II greets participants during a British D-Day commemoration ceremony in Bayeux cemetery, northern France, Friday, June 6, 2014. World leaders and veterans gathered by the beaches of Normandy on Friday to mark the 70th anniversary of World War Two's D-Day landings. (AP Photo/Leon Neal, Pool) ( France D-Day )

Queen Elizabeth II speaks with US President Barack Obama during a group photo of world leaders attending the D-Day 70th Anniversary ceremonies at Chateau de Benouville in Benouville, France, June 6, 2014. AFP PHOTO / Saul LOEB/AFP/Getty Images ( 530450821 )

President Barak Obama of the United States greets President Francois Hollande of France at a Ceremony to Commemorate D-Day 70 on Sword Beach on June 6, 2014 in Ouistreham, France. (Photo by Chris Jackson/Getty Images) ( 450170540 )

World War II veterans of the U.S. 29th Infantry Division, Hal Baumgarten, right, 90, of Pennsylvania, and Steve Melnikoff, 94, of Maryland, salute during a D-Day commemoration, on Omaha Beach in Vierville sur Mer, western France , Friday June 6, 2014. Veterans and Normandy residents are paying tribute to the thousands who gave their lives in the D-Day invasion of Nazi-occupied France 70 years ago. (AP Photo/Thibault Camus) ( CORRECTION France D-Day Commemorations )

US President Barack Obama, left, and French President Francois Hollande look out over Omaha beach during a joint French-US D-Day commemoration ceremony at the Normandy American Cemetery and Memorial in Colleville-sur-mer, Normandy, France, Friday June 6, 2014, marking the 70th anniversary of the World War II Allied landings in Normandy. (AP Photo/Alain Jocard, pool) ( France D-Day )

A British veteran walks among headstones before participating in a French-British D-Day commemoration ceremony at the British War Cemetery in Bayeux, France, Friday, June 6, 2014. World leaders and veterans gathered by the beaches of Normandy on Friday to mark the 70th anniversary of World War Two's D-Day landings. (AP Photo/Thomas Bregardis, Pool) ( France D-Day )

Russian President Vladimir Putin (L), German Chancellor Angela Merkel and Ukrainian President Petro Poroshenko (R) attend the main international ceremony with 17 heads of state at Sword Beach on June 6, 2014 at Ouistreham, France. (Photo by Sean Gallup/Getty Images) ( 450170214 )

A fanfare parades prior to the start of the international D-Day commemoration ceremony on the beach of Ouistreham, Normandy, on June 6, 2014, marking the 70th anniversary of the World War II Allied landings in Normandy. AFP PHOTO / CHARLY TRIBALLEAU/AFP/Getty Images ( 530452091 )

A World War Two veteran, second right, meets U.S. President Barack Obama as they participate in the 70th French-American commemoration D-Day ceremony at the Normandy American Cemetery and Memorial in Colleville-sur-Mer, France on Friday, June 6, 2014. World leaders and veterans gathered by the beaches of Normandy on Friday to mark the 70th anniversary of World War Two's D-Day landings. (AP Photo/Pascal Rossignol, Pool) ( France D-Day )

Helicopters and V-22 tilt-rotors fly over the Normandy American Cemetery and Memorial during a joint French-US D-Day commemoration ceremony in Colleville-sur-mer, Normandy, on June 6, 2014, marking the 70th anniversary of the World War II Allied landings in Normandy. AFP PHOTO / DAMIEN MEYER/AFP/Getty Images ( 530448090 )

Norwegian World War II veterans are welcomed as they arrive for a joint French-Norwegian D-Day commemoration ceremony in Hermanville-sur-Mer, Normandy, on June 6, 2014, marking the 70th anniversary of the World War II Allied landings in Normandy. AFP PHOTO / JEAN-FRANCOIS MONIER/AFP/Getty Images ( 530449473 )

A Dutch B-25 Mitchell (top) and Spitfire fly over Arromanches-les-Bains, Normandy, on June 6, 2014, a joint French-Dutch D-Day commemoration ceremony marking the 70th anniversary of the World War II Allied landings in Normandy. AFP PHOTO / JEAN-SEBASTIEN EVRARD/AFP/Getty Images ( 530449783 )

Britain's Queen Elizabeth II (L), Britain's Prince Charles, Prince of Wales (C) and his wife Camilla, the Duchess of Cornwall Camilla (R) attend a bi-national France-UK D-Day commemoration ceremony at the British War Cemetery of Bayeux, on June 6, 2014, marking the 70th anniversary of the World War II Allied landings in Normandy. AFP PHOTO / POOL / THOMAS BREGARDIS/AFP/Getty Images ( 530450830 )

British Prime Minister David Cameron (R) speaks with a British veteran during a bi-national France-UK D-Day commemoration ceremony at the British War Cemetery of Bayeux, on June 6, 2014, marking the 70th anniversary of the World War II Allied landings in Normandy. AFP PHOTO / POOL / THOMAS BREGARDIS/AFP/Getty Images ( 530450930 )

Members of the French Republican guard stand at attention to an international D-Day commemoration ceremony on the beach of Ouistreham, Normandy, on June 6, 2014, marking the 70th anniversary of the World War II Allied landings in Normandy. AFP PHOTO / GUILLAUME SOUVANT/AFP/Getty Images ( 530452144 )

British veterans sit prior to an international D-Day commemoration ceremony on the beach of Ouistreham, Normandy, on June 6, 2014, marking the 70th anniversary of the World War II Allied landings in Normandy. AFP PHOTO / CHARLY TRIBALLEAU/AFP/Getty Images ( 530451945 )

US President Barack Obama (R) chats with WWII veterans as he arrives to attend the international D-Day commemoration ceremony on the beach of Ouistreham, Normandy, on June 6, 2014, marking the 70th anniversary of the World War II Allied landings in Normandy. AFP PHOTO / DAMIEN MEYER/AFP/Getty Images ( 530452807 )

New Zealand's Prime Minister John Key, left, British Prime Minister David Cameron, center, and Australia's Prime Minister Tony Abbott, right, lay wreaths during a British D-Day commemoration ceremony at the Bayeux cemetery, northern France, Friday, June 6, 2014. World leaders and veterans gathered by the beaches of Normandy on Friday to mark the 70th anniversary of World War Two's D-Day landings. (AP Photo/Leon Neal, Pool) ( France D-Day )

Britain's Queen Elizabeth II (c) smiles next to Danish Queen Margrethe (R) during the international D-Day commemoration ceremony on the beach of Ouistreham, Normandy, on June 6, 2014, marking the 70th anniversary of the World War II Allied landings in Normandy. AFP PHOTO / DAMIEN MEYER/AFP/Getty Images ( 530453677 )

U.S. President Barack Obama, left, and French President Francois Hollande, right, waves with World War II veteran Kenneth "Rock" Merritt as they arrive for the official lunch at Benouville castle, in Normandy, France, Friday, June 6, 2014. World leaders and veterans paid tribute on the 70th anniversary of the World War Two D-Day landings to soldiers who fell in the liberation of Europe from Nazi German rule, as host France sought to use the event to achieve a thaw in the Ukraine crisis. (Regis Duvignau, pool) ( France D-Day )

(L to R) Canada's Prime Minister Stephen Harper, European Council president Herman Van Rompuy, Belgium's King Philippe, Netherland's King Willem-Alexander, Poland's President Bronislaw Komorowski, US President Barack Obama, Italy's President Giorgio Napolitano, Slovakia's president Ivan Gasparovic, Norway's King Harald V, Belgium's Queen Mathilde, Netherland's Queen Maxima, and Danish Queen Margrethe, prior to an international D-Day commemoration ceremony on the beach of Ouistreham, Normandy, on June 6, 2014, marking the 70th anniversary of the World War II Allied landings in Normandy. AFP PHOTO / GUILLAUME SOUVANT/AFP/Getty Images ( 530453908 )

US President Barack Obama, left, and French President Francois Hollande look out over Omaha beach during a joint French-US D-Day commemoration ceremony at the Normandy American Cemetery and Memorial in Colleville-sur-mer, Normandy, France, Friday June 6, 2014, marking the 70th anniversary of the World War II Allied landings in Normandy. (AP Photo/Alain Jocard, pool) ( France D-Day )

People wearing WWII military uniforms of Czechoslovakia take a snapshot of British landing craft, on the beach of Arromanches, western France , Friday June 6, 2014. (AP Photo/Thibault Camus) ( France D-Day )

People wearing WWII British uniforms stand in front of British national flags on June 6, 2014 in Asnelles, Normandy, during a ceremony on the "Gold beach" where British troops landed on June 6, 1944 during the Operation Overlord. AFP PHOTO / JOEL SAGET/AFP/Getty Images ( 530447847 )

People look at a German Panzer II tank used in World War II on the Arromanches beach, Normandy, on June 6, 2014 during the ceremonies marking the 70th anniversary of the Operation Overlord. AFP PHOTO / JOEL SAGET/AFP/Getty Images ( 530450935 )

US President Barack Obama (L) speaks with Italian President Giorgio Napolitano during the Ouistreham International Ceremony at Sword Beach to commemorate the 70th anniversary of the Allied invasion at Normandy, in Ouistreham, France, June 6, 2014. AFP PHOTO / SAUL LOEB/AFP/Getty Images ( 530453583 )

A French veteran commando squad of the French navy, stand, on June 6, 2014, on the beach in Ouistreham prior to attend the ceremony of the D-Day commemorations, marking the 70th anniversary of the World War II Allied landings in Normandy. AFP PHOTO / LUDOVIC MARIN/AFP/Getty Images ( 530451485 )

US and French flags are seen near the beaches of Normandy during the French-American D-Day Commemoration Ceremony at the Normandy American Cemetery and Memorial in Colleville-sur-Mer, France, June 6, 2014. Leaders and dignitaries from around the world traveled to attend events commemorating the 70th anniversary of the June 6, 1944 Allied landings on the beaches of Normandy during World War II. AFP PHOTO / Saul LOEB/AFP/Getty Images ( 530452154 )

US President Barack Obama speaks during the 70th French-American Commemoration D-Day Ceremony at the Normandy American Cemetery and Memorial in Colleville-sur-Mer, Normandy, on June 6, 2014. Leaders and dignitaries from around the world traveled to attend events commemorating the June 6, 1944 Allied landings on the beaches of Normandy during World War II. AFP PHOTO / Saul LOEB/AFP/Getty Images ( 530451279 )

93 year old U.S WW II veteran Jim Martin of the 101st Airborne, left, completes a tandem parachute jump onto Utah Beach, western France, Thursday June 5, 2014, as part of the commemoration of the 70th anniversary of the D Day. World leaders and veterans prepare to mark the 70th anniversary of the invasion this week in Normandy. (AP Photo/Thibault Camus) ( APTOPIX France D-Day )

US war veteran Jim "Pee Wee" Martin (L), 93, prepares to land with a parachute on June 5, 2014 over Carentan, where he landed 70 years ago, when he was a paratrooper. The D-Day ceremonies on June 6 this year mark the 70th anniversary since the launch of 'Operation Overlord', a vast military operation by Allied forces in Normandy, which turned the tide of World War II, eventually leading to the liberation of occupied France and the end of the war against Nazi Germany. AFP PHOTO / JOEL SAGET/AFP/Getty Images ( 530423804 )

US war veteran Jim "Pee Wee" Martin (L), 93, reacts after landing with a parachute on June 5, 2014 in Carentan, where he landed 70 years ago, when he was a paratrooper. The D-Day ceremonies on June 6 this year mark the 70th anniversary since the launch of 'Operation Overlord', a vast military operation by Allied forces in Normandy, which turned the tide of World War II, eventually leading to the liberation of occupied France and the end of the war against Nazi Germany. AFP PHOTO / JOEL SAGET/AFP/Getty Images ( 530424217 )

Fred Glover, aged 88, a veteran of the 9th Para Battalian watches a parachute jump just outside Rainville during D-Day 70 Commemorations on June 5, 2014 in Ranville, France. Friday 6th June is the 70th anniversary of the D-Day landings which saw 156,000 troops from the allied countries including the United Kingdom and the United States join forces to launch an audacious attack on the beaches of Normandy, these assaults are credited with the eventual defeat of Nazi Germany. A series of events commemorating the 70th anniversary are planned for the week with many heads of state traveling to the famous beaches to pay their respects to those who lost their lives. (Photo by Chris Jackson/Getty Images) ( 450105224 )

The Red Arrows display team perform over Southsea Common at the end of a commemoration service of the D-Day landings on June 5, 2014 in Portsmouth, England. (Photo by Dan Kitwood/Getty Images) ( 450102586 )

Britain's Prince Charles, left, meets British glider pilot World War II veterans during a D-Day commemoration event at the Pegasus bridge, in Benouville, western France, Thursday, June 5, 2014, marking the 70th anniversary of the World War II Allied landings in Normandy. June 6, 2014 marks the 70th anniversary of D-Day and "Operation Overlord", a vast military operation by Allied forces in Normandy, which turned the tide of World War II, eventually leading to the liberation of occupied France and the end of the war against Nazi Germany. (AP Photo/Leon Neal, pool) ( France Britain D-Day )