Global Zero is a term in the literature of arms control

Arms control

Arms control is an umbrella term for restrictions upon the development, production, stockpiling, proliferation, and usage of weapons, especially weapons of mass destruction...

 that refers to the worldwide elimination of a weapons system, especially nuclear weapons or a particular class of nuclear weapons. In negotiations over the Intermediate-Range Nuclear Forces Treaty

Intermediate-Range Nuclear Forces Treaty

The Intermediate-Range Nuclear Forces Treaty is a 1987 agreement between the United States and the Soviet Union. Signed in Washington, D.C. by U.S. President Ronald Reagan and General Secretary Mikhail Gorbachev on December 8, 1987, it was ratified by the United States Senate on May 27, 1988 and...

, both sides discussed and eventually agreed to the "global zero option" in delivery vehicles with intermediate range. This option differed from other proposals that would only restrict the use of intermediate-range delivery vehicles in the European theater. The term "global zero" has also been used in connection with de-alerting nuclear weapons and the elimination of tactical nuclear weapons.

The generic term "global zero" or "zero" is often associated with nuclear disarmament

Nuclear disarmament

Nuclear disarmament refers to both the act of reducing or eliminating nuclear weapons and to the end state of a nuclear-free world, in which nuclear weapons are completely eliminated....

 or the worldwide elimination of nuclear weapons in arms control discourse. Various arms control campaigns have referred to themselves as Ground Zero

Ground Zero (campaign)

Ground Zero was a United States advocacy and education organization devoted to nuclear weapons. Founded by former White House National Security Council official Roger Molander, it did not explicitly support the nuclear freeze, but worked to raise awareness of the nuclear threat during the period of...

 or simply as Global Zero

Global Zero (campaign)

Global Zero is an international initiative launched in December 2008 to promote the elimination of nuclear weapons. It proposes a phased withdrawal and verification for the destruction of all devices held by official and unofficial members of the nuclear club...

.