From 1923 until the putsch of 1934 IMRO terrorism dominated the country. Bulgaria's position toward Macedonia was clear and unequivocal: it sought to annex Macedonia completely as it considered the land to be Bulgarian and the people to be Bulgarians. In the Bulgarian sector of Macedonia the Macedonians were given a high degree of latitude, some Macedonians even holding high offices in Bulgaria. In the Yugoslavian sectors of Macedonia, however, most Macedonians felt oppressed and restricted. As a result of this mixed status and treatment, there was a certain ambivalence in Macedonian sentiment, the IMRO terrorists favoring complete independence and self-rule. Among Macedonian patriots, two predominant factions grew up. The federalists favored an autonomous Macedonia--which could, if necessary, be allied with Yugoslavia and Bulgaria--and the Supremists sought to incorporate Macedonia within Bulgaria, with aspirations of dominating the entire Balkan area. The results of these divergent opinions were expressed in acts of violence and terrorism that wreaked havoc in Bulgaria and eventually culminated in federalist collaboration with the Ustashi--a group of Croat separatists--and the murder of King Alexander of Yugoslavia. Macedonian terrorism was virtually ended by the putsch of 1934. The government, the People's Bloc, which was a coalition of four parties including the Bulgarian Agrarian Union was overthrown by the so-called Zveno--or link--group. The Zveno group was headed by Kimon Georgiev and was aided by the League of Reserve Officers. As soon as it seized power, Zveno suspended the constitution and dissolved parliament. The king was left with only nominal powers. Although the group did succeed for the most part in ridding the country of Macedonian terrorism, its rule was overtly authoritarian. By 1935 the king, with the aid of the military, had regained his power and replaced the Zveno group with a more moderate government. With the reestablishment of the monarchy, a royal dictatorship took power and ruled over Bulgaria until 1943, when Boris died. There were at this time no forces left to oppose the king, political parties were negligible, and only a shadow parliament existed. Ironically, the military, which had aided the Zveno in the overthrow of the king, now was an instrument of his control.