ANZUS
Australia, New Zealand, & United States

AUS
Army of the United States

BUP
British United Press

POTUS
President of the United States

UFC
United Free Church

UK
United Kingdom

UKAEA
United Kingdom Atomic Energy Authority

UN
United Nations

UNA
United Nations Association

UNDP
United Nations Development Programme

UNESCO
United Nations Educational, Scientific, and Cultural Organisation

UNICEF
United Nations Children's Fund

UNIP
United Nationalist Independence Party

united
a united family

United Arab Emirates
Emiratos Árabes Unidos

United Kingdom
Reino Unido

United Nations
Nações Unidas

UNRRA
United Nations Relief and Rehabilitation Administration

UNRWA
United Nations Relief and Works Agency

UP
United Press

US
United States

USAF
United States Air Force

USAFE
United States Air Forces in Europe

USD
United States Dollar

USIS
United States Investigations Service

USMCA
United States Mexico Canada

USN
United States Navy

USP
United States Pharmacopoeia

USS
United States Senate

USV
United States Volunteers