Glossary of terms

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Turkey the centre of the Ottoman Empire; became a republic in 1923
U-boat a German submarine
ultimatum a final offer issued in negotiations, the rejection of which can lead to a break in relations and some action
undercarriage the part of a plane, including the wheels, that provides support when it is on the ground and when it is landing or taking off
United Kingdom (UK) refers to the United Kingdom of Great Britain and Ireland from 1 January 1801 to 5 December 1922, or the United Kingdom of Great Britain and Northern Ireland from 5 December 1922
upper class describes a group of people in a society who have the highest economic or social status
vanguard the part of a military force that goes into battle first; 'van' for short
veteran a person who served in the armed forces of their country during a war or peacekeeping mission
Victoria Cross (VC) the highest decoration for gallantry in the face of the enemy awarded to members of the British and Commonwealth armed forces
Viet Cong a communist guerrilla force that sought to overthrow the South Vietnamese government, later allied with North Vietnam
war cry a rallying cheer or slogan shouted by combatants in battle
weight of fire a measure of the quantity, density and intensity of artillery fire used to attack a target (see also 'fire-effect')
White Australia policy a term for the Immigration Restriction Act 1901 and its amendments, laws that prevented permanent migration of non-European peoples, especially Asians (mostly Chinese) and Pacific Islanders
wireless a telegraphy system that sends messages over a distance by radio signals