Photos: Headstones at Section 60, Arlington National Cemetery

Celeste Mills of El Paso, Texas, kneels beside the grave of her youngest son, Joshua Mills, who was killed in Afghanistan, at Arlington National Cemetery in Virginia, March 13, 2013. Picture taken March 13, 2013. REUTERS/Kevin Lamarque ( IRAQ-WAR/ANNIVERSARY )

A father and son photo is seen on Joshua Mills' headstone in Section 60 Arlington National Cemetery in Virginia, March 13, 2013. Section 60 contains graves of soldiers from the wars in Iraq and Afghanistan. Picture taken March 13, 2013. REUTERS/Kevin Lamarque ( IRAQ-WAR/ANNIVERSARY )

Photos are seen on the headstone of Joshua Mills in Section 60 at Arlington National Cemetery in Virginia, March 13, 2013. Section 60 contains graves of soldiers from the wars in Iraq and Afghanistan. Picture taken March 13, 2013. REUTERS/Kevin Lamarque ( IRAQ-WAR/ANNIVERSARY )

Celeste Mills of El Paso, Texas, leaves mementos on the headstone of her youngest son, Joshua Mills, who was killed in Afghanistan, at Arlington National Cemetery in Virginia, March 13, 2013. Picture taken March 13, 2013. REUTERS/Kevin Lamarque ( IRAQ-WAR/ANNIVERSARY )

Family photos adorn a headstone in Section 60 at Arlington National Cemetery in Virginia, March 13, 2013. Section 60 contains graves of soldiers from the wars in Iraq and Afghanistan. Picture taken March 13, 2013. REUTERS/Kevin Lamarque ( IRAQ-WAR/ANNIVERSARY )

Mementos are seen on a headstone in Section 60 at Arlington National Cemetery in Virginia, March 13, 2013. Section 60 contains graves of soldiers from the wars in Iraq and Afghanistan. Picture taken March 13, 2013. REUTERS/Kevin Lamarque ( IRAQ-WAR/ANNIVERSARY )

A stone with "Mom" written on it is seen on a headstone in Section 60 at Arlington National Cemetery in Virginia, March 13, 2013. Section 60 contains graves of soldiers from the wars in Iraq and Afghanistan. Picture taken March 13, 2013. REUTERS/Kevin Lamarque ( IRAQ-WAR/ANNIVERSARY )

"Dad" painted on a stone is seen on a headstone in Section 60 at Arlington National Cemetery in Virginia, March 13, 2013. Section 60 contains graves of soldiers from the wars in Iraq and Afghanistan. Picture taken March 13, 2013. REUTERS/Kevin Lamarque ( IRAQ-WAR/ANNIVERSARY )

Stones with messages sit beside a headstone in Section 60 at Arlington National Cemetery in Virginia, March 13, 2013. Section 60 contains graves of soldiers from the wars in Iraq and Afghanistan. Picture taken March 13, 2013. REUTERS/Kevin Lamarque ( IRAQ-WAR/ANNIVERSARY )

Kisses are seen on a headstone in Section 60 at Arlington National Cemetery in Virginia, March 13, 2013. Section 60 contains graves of soldiers from the wars in Iraq and Afghanistan. Picture taken March 13, 2013. REUTERS/Kevin Lamarque ( IRAQ-WAR/ANNIVERSARY )

Mementos are seen on a headstone in Section 60 at Arlington National Cemetery in Virginia, March 13, 2013. Section 60 contains graves of soldiers from the wars in Iraq and Afghanistan. Picture taken March 13, 2013. REUTERS/Kevin Lamarque ( IRAQ-WAR/ANNIVERSARY )

A stone decorated with "Love you Pappa" is seen on a headstone in Section 60 at Arlington National Cemetery in Virginia, March 13, 2013. Section 60 contains graves of soldiers from the wars in Iraq and Afghanistan. Picture taken March 13, 2013. REUTERS/Kevin Lamarque ( IRAQ-WAR/ANNIVERSARY )

A broken heart is seen on a headstone in Section 60 at Arlington National Cemetery in Virginia, March 13, 2013. Section 60 contains graves of soldiers from the wars in Iraq and Afghanistan. Picture taken March 13, 2013. REUTERS/Kevin Lamarque ( IRAQ-WAR/ANNIVERSARY )

A star written with "Freedom is Not Free!" is seen beside a headstone in Section 60 at Arlington National Cemetery in Virginia, March 13, 2013. Section 60 contains graves of soldiers from the wars in Iraq and Afghanistan. Picture taken March 13, 2013. REUTERS/Kevin Lamarque ( IRAQ-WAR/ANNIVERSARY )

Mementos and a medal are seen on a headstone in Section 60 at Arlington National Cemetery in Virginia, March 13, 2013. Section 60 contains graves of soldiers from the wars in Iraq and Afghanistan. Picture taken March 13, 2013. REUTERS/Kevin Lamarque ( IRAQ-WAR/ANNIVERSARY )

A stone decorated with a "Thank u" message is seen on a headstone in Section 60 at Arlington National Cemetery in Virginia, March 13, 2013. Section 60 contains graves of soldiers from the wars in Iraq and Afghanistan. Picture taken March 13, 2013. REUTERS/Kevin Lamarque ( IRAQ-WAR/ANNIVERSARY )

Sea shells with names of loved ones are seen on a headstone in Section 60 at Arlington National Cemetery in Virginia, March 13, 2013. Section 60 contains graves of soldiers from the wars in Iraq and Afghanistan. Picture taken March 13, 2013. REUTERS/Kevin Lamarque ( IRAQ-WAR/ANNIVERSARY )

Mementos are seen on a headstone in Section 60 at Arlington National Cemetery in Virginia, March 13, 2013. Section 60 contains graves of soldiers from the wars in Iraq and Afghanistan. Picture taken March 13, 2013. REUTERS/Kevin Lamarque ( IRAQ-WAR/ANNIVERSARY )

Kisses are seen on a headstone in Section 60 at Arlington National Cemetery in Virginia, March 13, 2013. Section 60 contains graves of soldiers from the wars in Iraq and Afghanistan. Picture taken March 13, 2013. REUTERS/Kevin Lamarque ( IRAQ-WAR/ANNIVERSARY )

Mementos and photos adorn a headstone in Section 60 at Arlington National Cemetery in Virginia, March 13, 2013. Section 60 contains graves of soldiers from the wars in Iraq and Afghanistan. Picture taken March 13, 2013. REUTERS/Kevin Lamarque ( IRAQ-WAR/ANNIVERSARY )

A headstone in Section 60 is decorated with stones and a figurine at Arlington National Cemetery in Virginia, March 13, 2013. Section 60 contains graves of soldiers from the wars in Iraq and Afghanistan. Picture taken March 13, 2013. REUTERS/Kevin Lamarque ( IRAQ-WAR/ANNIVERSARY )

Stones with the names of loved ones are seen on a headstone in Section 60 at Arlington National Cemetery in Virginia, March 13, 2013. Section 60 contains graves of soldiers from the wars in Iraq and Afghanistan. Picture taken March 13, 2013. REUTERS/Kevin Lamarque ( IRAQ-WAR/ANNIVERSARY )

The word "hero" is seen on a headstone in Section 60 at Arlington National Cemetery in Virginia, March 13, 2013. Section 60 contains graves of soldiers from the wars in Iraq and Afghanistan. Picture taken March 13, 2013. REUTERS/Kevin Lamarque ( IRAQ-WAR/ANNIVERSARY )

Christmas wishes are seen on a headstone in Section 60 at Arlington National Cemetery in Virginia, March 13, 2013. Section 60 contains graves of soldiers from the wars in Iraq and Afghanistan. Picture taken March 13, 2013. REUTERS/Kevin Lamarque ( IRAQ-WAR/ANNIVERSARY )

Mementos are seen on a headstone in Section 60 at Arlington National Cemetery in Virginia, March 13, 2013. Section 60 contains graves of soldiers from the wars in Iraq and Afghanistan. Picture taken March 13, 2013. REUTERS/Kevin Lamarque ( IRAQ-WAR/ANNIVERSARY )

Bullet casings and stones are seen on a headstone in Section 60 at Arlington National Cemetery in Virginia, March 13, 2013. Section 60 contains graves of soldiers from the wars in Iraq and Afghanistan. Picture taken March 13, 2013. REUTERS/Kevin Lamarque ( IRAQ-WAR/ANNIVERSARY )

A Washington Redskins tag is seen on a headstone in Section 60 at Arlington National Cemetery in Virginia, March 13, 2013. Section 60 contains graves of soldiers from the wars in Iraq and Afghanistan. Picture taken March 13, 2013. REUTERS/Kevin Lamarque ( IRAQ-WAR/ANNIVERSARY )

A "IRQ I served" sticker is seen on a headstone in Section 60 at Arlington National Cemetery in Virginia, March 13, 2013. Section 60 contains graves of soldiers from the wars in Iraq and Afghanistan. Picture taken March 13, 2013. REUTERS/Kevin Lamarque ( IRAQ-WAR/ANNIVERSARY )

A daughter's grave is seen in Section 60 at Arlington National Cemetery in Virginia, March 13, 2013. Section 60 contains graves of soldiers from the wars in Iraq and Afghanistan. Picture taken March 13, 2013. REUTERS/Kevin Lamarque ( IRAQ-WAR/ANNIVERSARY )

A beer can is seen in front of a headstone in Section 60 at Arlington National Cemetery in Virginia, March 13, 2013. Section 60 contains graves of soldiers from the wars in Iraq and Afghanistan. Picture taken March 13, 2013. REUTERS/Kevin Lamarque ( IRAQ-WAR/ANNIVERSARY )

Photos are seen on a headstone in Section 60 at Arlington National Cemetery in Virginia, March 13, 2013. Section 60 contains graves of soldiers from the wars in Iraq and Afghanistan. Picture taken March 13, 2013. REUTERS/Kevin Lamarque ( IRAQ-WAR/ANNIVERSARY )

Hearts adorn a headstone in Section 60 at Arlington National Cemetery in Virginia, March 13, 2013. Section 60 contains graves of soldiers from the wars in Iraq and Afghanistan. Picture taken March 13, 2013. REUTERS/Kevin Lamarque ( IRAQ-WAR/ANNIVERSARY )

Paintings of flowers sit beside real flowers at a grave in Section 60 at Arlington National Cemetery in Virginia, March 13, 2013. Section 60 contains graves of soldiers from the wars in Iraq and Afghanistan. Picture taken March 13, 2013. REUTERS/Kevin Lamarque ( IRAQ-WAR/ANNIVERSARY )

A hand print, kept safe inside a Ziploc bag, adorns a headstone in Section 60 at Arlington National Cemetery in Virginia, March 13, 2013. Section 60 contains graves of soldiers from the wars in Iraq and Afghanistan. Picture taken March 13, 2013. REUTERS/Kevin Lamarque ( IRAQ-WAR/ANNIVERSARY )