In December 1994, Croatia and the RSK made an economic agreement to restore road and rail links, water and gas supplies, and use of a part of the Adria oil pipeline. Even though some of the agreement was never implemented, a section of the Zagreb–Belgrade motorway passing through RSK territory near Okučani and the pipeline were both opened. Following a deadly incident that occurred in late April 1995 on the recently opened motorway, Croatia reclaimed all of the RSK's territory in western Slavonia during Operation Flash, taking full control of the territory by 4 May, three days after the battle began. In response, the ARSK attacked Zagreb using M-87 Orkan missiles with cluster munitions. Subsequently, Milošević sent a senior Yugoslav Army officer to command the ARSK, along with arms, field officers and thousands of Serbs born in the RSK area who had been forcibly conscripted by the ARSK.