Armenian Christian women pray at St. Giragos Church in southeastern Turkey. The restored church, reopened in 2011, is the largest Armenian church in the Middle East. Sertac Kayar/Reuters/Landov hide caption

itoggle caption Sertac Kayar/Reuters/Landov

Allied troops at the ANZAC Cove in the Gallipoli peninsula, during World War I. Britain, France, Australia and New Zealand fought for nine months but could not defeat the Ottomans. Overall, a half-million were killed or wounded. Hulton Archive/Getty Images hide caption

itoggle caption Hulton Archive/Getty Images

Armenians lay flowers Tuesday at the Tsitsernakaberd Armenian Genocide Memorial in Yerevan, Armenia. Armenians on Friday will commemorate 100 years since 1.5 million of their kin were killed by Ottoman forces. Armenians and many historians call it the first genocide of the 20th century, but Turkey fiercely rejects that label. Karen Minasyan/AFP/Getty Images hide caption

itoggle caption Karen Minasyan/AFP/Getty Images