Croatia's President Kolinda Grabar-Kitarovic, right, and Polish President Andrzej Duda walk to light candles during a ceremony at the former Auschwitz Nazi death camp in Oswiecim, Poland, Wednesday, Jan. 27, 2016, on the 71st anniversary of the death camp's liberation by the Soviet Red Army in 1945. The commemoration at the former death camp in southern Poland, an area under Nazi occupation during WWII, is part of the U.N.-designated International Remembrance Day, marked by politicians, survivors and others in ceremonies and events across the world. (AP Photo/Czarek Sokolowski)