Tuvalu became a member of United Nations in 2000 and maintains a mission at the UN in New York. Tuvalu's only other diplomatic office is its High Commission in Suva, Fiji. Tuvalu is an active member of the Pacific Islands Forum. It also is a member of the Asian Development Bank.

A major international priority for Tuvalu in the UN, at the World Summit on Sustainable Development in Johannesburg and in other international fora is promoting concern about global warming and possible sea level rise. Tuvalu advocates ratification and implementation of the Kyoto Protocol. Tuvalu also takes an interest in the Republic of Nauru because of about 300 Tuvaluans working there. Many are allegedly owed substantial back wages.

The U.S. Embassy in Fiji, also accredited to Tuvalu, is located at 31 Loftus Street, Suva. Tel: 679-331-4466. Fax: 679-330-0081. The mailing address is U.S. Embassy, P.O. Box 218, Suva, Fiji.