KRAVICA, BOSNIA AND HERZEGOVINA - JULY 13: Bullet holes can be seen on the walls of the Kravica warehouse the site mass killing of 1,313 Muslims on July 13, 2017 in Kravica, Bosnia and Herzegovina. On July 13 1995, an estimated of 1300 Muslim-Bosnian boys and men were executed in warehouses by Bosnian-Serb forces. Bullet holes can be seen on the walls of the wearhouses. (Photo by Pierre Crom/Getty Images)