 Included in this region were Ukraine's Mykolaiv, Kherson and Zaporizhia Oblasts, and the Autonomous Republic of Crimea.Another key event in the development of the Ukrainian military was the 1992 Tashkent Treaty, which laid out aspirations for a Commonwealth of Independent States military.This collective military proved impossible to develop because the former republics of the USSR all wished to go their own way, ripping the intricate Soviet military machine into pieces.