At the end of the war a number of individuals were tried by the British government for high treason. These included members of the Waffen-SS British Free Corps and William Joyce, better known as Lord Haw-Haw. As agreed at the Yalta Conference, the British handed back many Soviet citizens to the Soviet authorities for trial. Some of these were collaborators who had served in the pro-Nazi Russian Liberation Army. A controversy would emerge several year later, because some of those handed over were White Russians and Cossacks who had never been Soviet citizens, and who were subsequently murdered by the Soviet authorities. Yugoslavs were handed over to Josip Broz Tito's forces, with many being imprisoned while some killed as a result.