Violence erupted again in early May 1995. The RSK lost support from the Serbian government in Belgrade, partly as a result of international pressure. At the same time, the Croatian Operation Flash reclaimed all of the previously occupied territory in Western Slavonia. In retaliation, Serb forces attacked Zagreb with rockets, killing 7 and wounding over 200 civilians. The Yugoslav army responded to the offensive with a show of force, moving tanks towards the Croatian border, in an apparent effort to stave off a possible attack on the occupied area in Eastern Slavonia.