On 4 December 1990, Ardzinba was elected Chairman of the Supreme Soviet of Abkhazia. Ardzinba, who was a charismatic but excitable figure popular among the Abkhaz, was believed by Georgians to have helped to instigate the violence of July 1989. Ardzinba managed to consolidate his power relatively quickly and reneged on pre-election promises to increase the representation of Georgians in Abkhazia's autonomous structures; since then, Ardzinba tried to rule Abkhazia relatively single-handedly, but avoided, for the time being, overt conflict with the central authorities in Tbilisi. In mid-1991, he negotiated and accepted the Georgian concession on the reform of the electoral law that granted the Abkhaz wide over-representation in the Supreme Soviet. However, Ardzinba created the Abkhazian National Guard that was mono-ethnically Abkhaz, and initiated a practice of replacing ethnic Georgians in leading positions with Abkhaz. As the Georgian-Abkhaz tensions rose, Ardzinba's rhetoric mounted, as he claimed in late July 1992 that "Abkhazia is strong enough to fight Georgia."