Wikipedia (en)
The Intermediate-Range Nuclear Forces Treaty (INF Treaty, formally Treaty Between the United States of America and the Union of Soviet Socialist Republics on the Elimination of Their Intermediate-Range and Shorter-Range Missiles; Russian: Договор о ликвидации ракет средней и меньшей дальности / ДРСМД, Dogovor o likvidatsiy raket sredney i menshey dalnosti / DRSMD) was an arms control treaty between the United States and the Soviet Union (and its successor state, the Russian Federation). U.S. President Ronald Reagan and Soviet General Secretary Mikhail Gorbachev signed the treaty on 8 December 1987. The United States Senate approved the treaty on 27 May 1988, and Reagan and Gorbachev ratified it on 1 June 1988.The INF Treaty banned all of the two nations' land-based ballistic missiles, cruise missiles, and missile launchers with ranges of 500–1,000 kilometers (310–620 mi) (short medium-range) and 1,000–5,500 km (620–3,420 mi) (intermediate-range). The treaty did not apply to air- or sea-launched missiles. By May 1991, the nations had eliminated 2,692 missiles, followed by 10 years of on-site verification inspections.U.S. President Donald Trump announced on 20 October 2018 that he was withdrawing the U.S. from the treaty, accusing Russia of non-compliance. The U.S. formally suspended the treaty on 1 February 2019, and Russia did so on the following day in response to the U.S. withdrawal. The withdrawal will take effect on 2 August 2019.