UPU: Universal Postal Union
US: United States
USSR: Union of Soviet Socialist Republics (Soviet Union); used for information dated before 25 December 1991
USSR/EE: Union of Soviet Socialist Republics/Eastern Europe
UV: ultra violet
VHF: very-high-frequency
VSAT: very small aperture terminal
WADB: West African Development Bank
WAEMU: West African Economic and Monetary Union
WCL: World Confederation of Labor