TOPSHOTS A man rests on a fence in front of the building of the former federal Interior Ministry in Belgrade, which was destroyed during the 1999 NATO air campaign against Serbia and Montenegro on March 24, 2015. Serbia marks on March 24 the 16th anniversary since NATO launched an air war to stop the crackdown on independence-seeking Kosovo by the regime of strongman Slobodan Milosevic. On March 24 1999, NATO launched the attack -- without UN Security Council backing -- after Milosevic spurned a call to end repression by Serbian forces on ethnic Albanian guerrillas fighting for the independence of Kosovo. AFP PHOTO / ANDREJ ISAKOVIC