During the Prague uprising, which started on 5 May 1945, the city was surrounded by Wehrmacht and SS units, the latter in a vengeful mood. The Czech resistance appealed to the First Division of the German-sponsored Russian Liberation Army commanded by General Sergei Bunyachenko to switch sides, promising them that they be granted asylum in Czechoslovakia and would not be repatriated to the Soviet Union, where they faced execution for treason for fighting for Germany. As the Czech resistance lacked heavy arms such as tanks and artillery, the 1st Division was badly needed to help hold Prague.