START I
Arms Control

START I

Signed: 1991Moscow

The treaty that marked the end of the Cold War's nuclear arms race by significantly reducing strategic nuclear arsenals.

The Strategic Arms Reduction Treaty (START I), signed on July 31, 1991, in Moscow, was a landmark agreement between the United States and the Soviet Union aimed at reducing and limiting strategic offensive arms. This treaty was pivotal in ending the nuclear arms race that had characterized much of the Cold War era. By mandating significant reductions in the number of nuclear warheads and delivery vehicles, START I not only reduced the immediate threat of nuclear confrontation but also laid the groundwork for future arms control agreements. The treaty's implementation was a complex process that required extensive verification measures, reflecting a new era of cooperation and transparency between the two superpowers. Its significance extends beyond the immediate reductions in nuclear arsenals, as it established a framework for ongoing dialogue and negotiation in arms control, contributing to global strategic stability.

Chapters

Timeline

1982-06-29

START Negotiations Begin

Formal negotiations for the Strategic Arms Reduction Treaty (START) commenced in Geneva, Switzerland, marking the beginning of a complex diplomatic process aimed at reducing nuclear arsenals.

1986-10-11

Reykjavik Summit

The Reykjavik Summit between U.S. President Ronald Reagan and Soviet General Secretary Mikhail Gorbachev laid the groundwork for future arms reduction agreements, despite not resulting in an immediate treaty.

1987-12-08

INF Treaty Signed

The Intermediate-Range Nuclear Forces Treaty was signed, eliminating an entire class of nuclear weapons and setting a precedent for future arms control agreements.

1990-06-01

Framework Agreement Reached

The United States and the Soviet Union reached a framework agreement on reducing their strategic arsenals to 6,000 warheads and 1,600 delivery vehicles each.

1991-07-31

START I Treaty Signed

The Strategic Arms Reduction Treaty (START I) was signed in Moscow by U.S. President George H.W. Bush and Soviet President Mikhail Gorbachev, marking a significant achievement in arms control.

1991-12-26

Dissolution of the Soviet Union

The Soviet Union was officially dissolved, leading to the emergence of independent states and necessitating adjustments to the implementation of START I.

1992-05-23

Lisbon Protocol Signed

The Lisbon Protocol was signed, committing newly independent states to adhere to START I and transfer nuclear weapons to Russia for dismantlement.

2001-12-05

START I Compliance Achieved

Both the United States and Russia met the reduction targets set by START I, successfully implementing the treaty's provisions and reducing their nuclear arsenals.

2002-06-13

U.S. Withdraws from ABM Treaty

The United States withdrew from the Anti-Ballistic Missile (ABM) Treaty, raising questions about the sustainability of the arms control framework established by START I.

2010-04-08

New START Treaty Signed

The New START treaty was signed by the United States and Russia, building upon the framework established by START I to achieve further reductions in nuclear arsenals.

Connected Across The Archives

Explore specific connections to other archives—civilizations, conflicts, dynasties, and companies that share history with this treaty.

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