Anti-Ballistic Missile Treaty

Anti-Ballistic Missile Treaty
Launch of a U.S. Army Nike Zeus missile, the first ABM system to enter widespread testing
TypeBilateral treaty
Signed26 May 1972 (1972-05-26)
LocationMoscow, Russian SFSR, USSR
Expiry2002 (U.S. withdrawal)
Signatories
Parties
Ratifiers
Full text
Anti-Ballistic Missile Treaty at Wikisource

The Anti-Ballistic Missile Treaty, also known as the ABM Treaty or ABMT, was an arms control treaty between the United States and the Soviet Union on the limitation of the anti-ballistic missile (ABM) systems used in defending areas against ballistic missile-delivered nuclear weapons. It was intended to reduce pressures to build more nuclear weapons to maintain deterrence. Under the terms of the treaty, each party was limited to two ABM complexes, each of which was to be limited to 100 anti-ballistic missiles.:115

Signed in 1972, it was in force for the next 30 years. In 1997, five years after the dissolution of the Soviet Union, four former Soviet republics agreed with the United States to succeed the USSR's role in the treaty, with Russia assuming all rights and obligations as the successor state of the Soviet Union. Citing purported risks of nuclear blackmail, the United States unilaterally withdrew from the treaty in June 2002, leading to its termination.