In order to obtain support from Britain, Peter put his hopes for restoration on General Draža Mihailović, the leader of the Chetniks. On 10 June 1942, Peter promoted Mihailović to full general and made him the Chief of Staff of the Royal Yugoslav Army. Pavlowitch summarized the importance of Mihailović to King Peter by noting: "There was no other instance of the leader of a resistance movement being taken directly into an exiled government while remaining in occupied territory". Peter and the rest of the government-in-exile failed to appreciate the Serb nationalism of Mihailović and the other Chetnik leaders was extremely offensive to the other peoples of Yugoslavia, all the more so as when reports of massacres committed by the Chetniks against Croats and Bosnian Muslims emerged. For the peoples of Yugoslavia who were not Serbian, the king's support for the Chetniks seemed to suggest that after the war he was planning to establish a state that would be dominated by chauvinistic Serb nationalists, which led to those who wanted to resist the Axis occupation to support the Partisans who at least promised to establish a state where all the peoples of Yugoslavia would be equal. The intense Serb nationalism of the Chetniks also caused alarm in London and Washington, sparking fears about the stability of Yugoslavia if it were restructured as a Serb-dominated state, which caused some decision-makers to feel that Yugoslavia would be more stable if ruled by the Croatian Communist Josip Broz Tito. Peter's efforts to have the United States as a counterbalance failed as the Americans shared the British frustration with the unwillingness of the Chetniks to engage in maximum violence against the Germans and were increasingly troubled by the reports that the Chetniks were collaborating with the Germans.