January 3, 1992 - Large parts of Crajina, Srem and eastern Slavonia have been conquered by the Serbs. United Nations peace forces of UNPROFOR are about to be stationed in the area after mediation of Mr. Cyrus Vance.

January 15, 1992 - The European Community recognized Slovania and Croatia.

February 21, 1992 - UN resolution 743 was adopted, which authorized establishment of UNPROFOR for 12 months, as an interim solution to end hostilities.

February 29, 1992 - Bosnia-Herzegovina declared independence, while Bosnian Serbs proclaimed a separate state. Fighting spreads over the country.

March 27, 1992 - The Bosnian Serbs unilaterally declared the independent state Srpska Republika.

April 6, 1992 - The European Community recognized Bosnia. Bosnian Serbs in Sarajevo fired upon demonstrators for peace. The outbreak of a full scale war was a fact.

April 6, 1992 - First shelling of Sarajevo by Serb troops took place. The siege of Sarajevo had started.

May 22, 1992 - Croatia became a UN member.

May 30, 1992 - The Security Council issued an arms embargo against Yugoslavia (consisting of Serbia and Montenegro -- the only two remaining states of former Yugoslavia).

July 1992 - NATO agreed to use naval force in Adriatic to review compliance with UN sanctions imposed on Serbia and Montenegro, which make up the rump Yugoslav state. The following year, the naval force is given powers to enforce the sanctions.

October 9, 1992 - The Security Council announced a "No-Fly Zone" in Bosnian airspace.

October 16, 1992 - NATO forces began monitoring flights in the airspace of Bosnia-Herzegovina in NATO Operation Sky Monitor. This was in response to UN Security Council Resolutiion 781 which requested member states to assist UNPROFOR to monitor the ban on military flights in that airspace.

Monitoring was carried out by NAEW aircraft which were already involved in the naval monitoring and subsequent embargo operations in the Adriatic. Coverage was enhanced on October 31, 1992 when an additional NAEW orbit was established over Hungary with the support of the Hungarian and Austrian governments. The UN assessed that more than 500 flights violated the ban during the period 16 October 1992 to 12 April 1993.