<P> On the morning of 26 June, units of the Yugoslav People's Army's 13th Corps left their barracks in Rijeka, Croatia, to move towards Slovenia's borders with Italy . </P> <P> The move immediately led to a strong reaction from local Slovenians, who organized spontaneous barricades and demonstrations against the YPA's actions . There was, as yet, no fighting, and both sides appeared to have an unofficial policy of not being the first to open fire . </P> <P> By this time, the Slovenian government had already put into action its plan to seize control of both the international Ljubljana Airport and the Slovenia's border posts on borders with Italy, Austria and Hungary . </P> <P> The personnel manning the border posts were, in most cases, already Slovenians, so the Slovenian take - over mostly simply amounted to changing of uniforms and insignia, without any fighting . By taking control of the borders, the Slovenians were able to establish defensive positions against an expected YPA attack . This meant that the YPA would have to fire the first shot . It was fired on 27 June at 14: 30 in Divača by an officer of the YPA . </P>

Causes and effects of the breakup of yugoslavia