1991    The Battle of Vukovar has begun. An 87-day siege of a Croatian city by the Yugoslav People's Army (JNA), supported by various Serbian paramilitary forces, between August-November 1991 during the Croatian War of Independence.

1991    History of Slovenia: Three months after the end of the Ten-Day War, the last soldier of the Yugoslav People's Army leaves the territory of the Republic of Slovenia.

1991    In Croatia, forces of the Yugoslav People's Army bombard Dubrovnik after laying siege to the city since May.