At 5 a.m. on August 4, more than 130,000 Croatian Army troops and police moved forward behind a rolling artillery barrage. Their target was the Republic of Serbian Krajina, a self-declared Serb-held territory encompassing about a quarter of Croatia. The immediate objective was the city of Knin, the rebel capital. The broader aim was to reclaim sovereign territory in one decisive stroke before the approaching autumn mud.
The operation was a blunt application of overwhelming force. Over 200,000 shells fell on Serb positions in the first hours. The Croatian Air Force struck command posts and infrastructure. The Serbian Krajina Army, outnumbered and outgunned, offered sporadic resistance before its command structure collapsed. By noon on August 5, Croatian forces raised their flag over Knin fortress. The military phase was largely over in 84 hours. The political and human consequences unfolded for years.
Operation Storm ended the Croatian War of Independence. It altered the military balance in the wider Bosnian War, pressuring Serb forces there. The offensive also triggered a mass exodus. Between 150,000 and 200,000 Serb civilians fled ahead of the advancing troops, fearing reprisals. The International Criminal Tribunal for the former Yugoslavia later convicted Croatian generals Ante Gotovina and Mladen Markač for their part in a joint criminal enterprise to permanently remove the Serb civilian population. The operation is celebrated as Victory Day in Croatia and remembered as a catastrophe by Serbs.
The event's legacy is a study in contradictory permanence. It solidified Croatia's borders and enabled its eventual path to NATO and EU membership. It also cemented a demographic shift that defined the modern Croatian state. The empty houses in Krajina towns stand as physical evidence of a victory that was both definitive and deeply divisive.