They operated all Soviet nuclear ground-based intercontinental, intermediate-range ballistic missile, and medium-range ballistic missile with ranges over 1,000 kilometers. After the Soviet Union collapsed in 1991, assets of the Strategic Rocket Forces were in the territories of several new states in addition to Russia, with armed nuclear missile silos in Belarus, Kazakhstan and Ukraine. The three of them transferred their missiles to Russia for destruction and they all joined the Nuclear Non-Proliferation Treaty.