A diorama depicts Gallipoli fighting at the War Museum store in Gallipoli peninsula, Turkey, Thursday, April 23, 2015. As world leaders gather with the descendants of the fighters in Gallipoli, the memories of one of the most harrowing campaigns of the 20th century have come surging back to life. The doomed Allied offensive to secure a naval route from the Mediterranean to Istanbul through the Dardanelles, and take the Ottomans out of the war, resulted in over 130,000 deaths on both sides. (AP Photo/Lefteris Pitarakis)