Yemen joined the Arab League in 1945 and was admitted to UN membership on 30 September 1947; the republican government became Yemen's UN representative in December 1962. Yemen participates in the ESCWA and all the nonregional specialized UN agencies. The country is also a member of G-77, a signatory to the Law of the Sea, and an applicant to the WTO.
Yemen is on good terms with both conservative and radical Arab states. Several thousand PLO fighters from Beirut were accepted in 1982. Military aid and advisers have been accepted from both the United States and the former USSR.