The initial idioms of the letter W

war game	war god
war hawk	War of American Independence
war of nerves	War of the Austrian Succession
War of the Grand Alliance	War of the League of Augsburg
War of the Roses	War of the Spanish Succession
war paint	war party
war power	war room
War Secretary	war vessel
war whoop	war widow
war zone	waratah
warble	warble fly
warbler	Warburg
ward	ward off
warden	wardenship
warder	wardership