Operation Flash

Operation Flash (Serbo-Croatian: Operacija Bljesak/Операција Блесак) was a brief Croatian Army (HV) offensive conducted against forces of the self-declared Republic of Serbian Krajina (RSK) from 1–3 May 1995. The offensive occurred in the later stages of the Croatian War of Independence and was the first major confrontation after ceasefire and economic cooperation agreements were signed between Croatia and the RSK in 1994. The last organised RSK resistance formally ceased on 3 May, with the majority of troops surrendering the next day near Pakrac, although mop-up operations continued for another two weeks.

Operation Flash was a strategic victory for Croatia resulting in the capture of a 558-square-kilometre (215 sq mi) salient held by RSK forces centred in and around the town of Okučani. The town, which sat astride the Zagreb–Belgrade motorway and railroad, had presented Croatia with significant transport problems between the nation's capital Zagreb and the eastern region of Slavonia as well as between non-contiguous territories held by the RSK. The area was a part of United Nations Confidence Restoration Operation (UNCRO) Sector West under the United Nations Security Council peacekeeping mandate in Croatia. The attacking force consisted of 7,200 HV troops, supported by the Croatian special police, arrayed against approximately 4,500 RSK soldiers. In response to the operation, the RSK military bombarded Zagreb and other civilian centres, causing seven fatalities and injuries to 205.