United Arab Emirates
2 December 1971 (from UK)

United Kingdom
England has existed as a unified entity since the
10th century; the union between England and Wales, begun in 1284
with the Statute of Rhuddlan, was not formalized until 1536 with an
Act of Union; in another Act of Union in 1707, England and Scotland
agreed to permanently join as Great Britain; the legislative union
of Great Britain and Ireland was implemented in 1801, with the
adoption of the name the United Kingdom of Great Britain and
Ireland; the Anglo-Irish treaty of 1921 formalized a partition of
Ireland; six northern Irish counties remained part of the United
Kingdom as Northern Ireland and the current name of the country, the
United Kingdom of Great Britain and Northern Ireland, was adopted in
1927

United States
4 July 1776 (from Great Britain)

Uruguay
25 August 1825 (from Brazil)

Uzbekistan
1 September 1991 (from Soviet Union)

Vanuatu
30 July 1980 (from France and UK)

Venezuela
5 July 1811 (from Spain)

Vietnam
2 September 1945 (from France)

Wallis and Futuna
none (overseas territory of France)

Yemen
22 May 1990 (Republic of Yemen established with the merger of
the Yemen Arab Republic [Yemen (Sanaa) or North Yemen] and the
Marxist-dominated People's Democratic Republic of Yemen [Yemen
(Aden) or South Yemen]); note - previously North Yemen had become
independent in November of 1918 (from the Ottoman Empire) and South
Yemen had become independent on 30 November 1967 (from the UK)