World War II veterans salute as taps is played at a ceremony Friday at the Normandy American Cemetery marking the 70th anniversary of D-Day in Colleville-sur-Mer, France. Win McNamee/Getty Images hide caption

itoggle caption Win McNamee/Getty Images

Hiroo Onoda, who wouldn't surrender for nearly three decades and continued to battle with villagers in the Philippines, in March 1974 after he was convinced to give up. Kyodo /Landov hide caption

itoggle caption Kyodo /Landov

Japanese Prime Minister Shinzo Abe, left, follows a Shinto priest during his visit to the Yasukuni shrine in Tokyo on Thursday. Franck Robichon /EPA/LANDOV hide caption

itoggle caption Franck Robichon /EPA/LANDOV

Detail of a Turing Bombe machine in Bletchley Park Museum in Bletchley, central England. The device, the brainchild of Alan Turning, was instrumental in cracking the German code during World War II. Alessia Pierdomenico/Reuters /Landov hide caption

itoggle caption Alessia Pierdomenico/Reuters /Landov

The latest film from celebrated Japanese animator Hayao Miyazaki, The Wind Rises, centers on the engineer who designed the plane used in the kamikaze attacks during World War II. Studio Ghibli/Walt Disney hide caption

itoggle caption Studio Ghibli/Walt Disney

The ring that finally found its way home after nearly 70 years. David Cox, an American pilot, traded it for some food while he was a prisoner of war in Germany. Courtesy of Norwood McDowell hide caption

itoggle caption Courtesy of Norwood McDowell

As a prisoner of war, Sub Lieut. John Pryor encrypted information and requests for supplies in letters sent from a German camp to his family in Cornwall. Plymouth University hide caption

itoggle caption Plymouth University

The names of Jeffrey Katz's family members are depicted on "stumbling stones" in Lembeck, Germany. His relatives owned a home on the property near the stones, before they were evicted in 1942. Jeffrey Katz/NPR hide caption

itoggle caption Jeffrey Katz/NPR

May 7, 1945: In Frankfurt, Germany, Allied commanders including British Field Marshal Bernard Montgomery, U.S. Gen. Dwight D. Eisenhower, Soviet Marshal Gregori Zhukov and others celebrate the German surrender. AFP/Getty Images hide caption

itoggle caption AFP/Getty Images