 Complete the following phrase:  In May 1945, a large column composed of NDH Home Guard troops, Ustaša, Cossacks, some Chetniks and the Slovene Home Guard, as well as numerous civilians, retreated from the Partisan forces heading northwest towards Italy and Austria. The German Instrument of Surrender was signed on 8 May, but the Germans put Pavelić in sole command of NDH forces, and he ordered to continue fighting as the columns tried to reach the British forces to negotiate passage into Allied-occupied Austria. The British Army, however, refused them entry and turned them over to the Partisan forces, starting the 