After the collapse of power in East and Central Europe, 83% of the Slovenians voted in favor of the independence of their republic during a referendum. In the meantime, 94% of the Croatians approved a more subtle resolution to strengthen their autonomy. Both republics drew their own conclusions after Serbia’s rejection to hand over the temporary presidency to Yugoslavia. On June 25, 1991, both republics separated from Yugoslavia - which then saw itself divided into two parts - and later proclaimed their independence. Serbia immediately launched a lightning attack against Croatia and, two weeks later, against Slovenia. The Yugoslav air force attacked key infrastructure targets of both republics aiming at damaging their economy and thus preventing them from obtaining their independence.