The UN General Assembly has passed a resolution every year since
1974 calling for the creation of a "nuclear-weapon-free zone
in the Middle East," yet has never determined which countries
would fall within this zone. A report of the Secretary-General in
1990 proposed a definition that included "core" and "peripheral"
countries. The "core" countries corresponded to a definition
of the Middle East drawn up a year earlier by the International
Atomic Energy Agency. The "peripheral" countries were
other members of the League of Arab States, which the 1990 report
said would also be desirable to include in the nuclear-free zone.
Sources: Technical Study
on Different Modalities of the Application of Safeguards in the
Middle East, 29 August 1989 (IAEA-GC XXXIII/887), 1, 4-8; Study
on Effective and Verifiable Measures Which Would Facilitate the
Establishment of a Nuclear-Weapon-Free Zone in the Middle East:
Report of the Secretary-General, 10 October 1990 (A/45/435),
20-21; Jan Prawitz and James F. Leonard, A Zone Free of Weapons
of Mass Destruction in the Middle East (New York and Geneva:
United Nations, 1996).