Croatian politician Stjepan Radić was shot on October 1928 and died a month later. Alexander I, King of Yugoslavia, imposed a royal dictatorship in January 1929 and made all political parties illegal. Ante Pavelić left the country for Vienna. He and Gustav Perčec, a former Austro-Hungarian Lieutenant colonel, established contact with organization of Macedonian political emigres. These two groups agreed to coordinate their political activities for achieving full independence for Macedonia and Croatia. There and then, Pavelić secretly met with the leader of outlawed Internal Macedonian Revolutionary Organization (IMRO), Ivan Mikhailov, a declared enemy of Yugoslavia, and made agreement with him to cooperate against the Yugoslav state.