communication trench
101Superior craton — in the west. The western margin extends from northern Minnesota through eastern Manitoba to northwestern Ontario.The formation of the Superior craton is best explained within the context of 2.72 2.68 Ga accretion of small continental plates and… …
102Chemical weapons in World War I — A poison gas attack using gas cylinders in World War I. The use of chemical weapons in World War I ranged from disabling chemicals, such as tear gas and the severe mustard gas, to lethal agents like phosgene and chlorine. This chemical warfare… …
103Harold Innis — Infobox Person name = Harold Innis caption = Harold Innis in the 1920s birth date = November 5, 1894 birth place = Otterville, Ontario death date = November 8, 1952 (aged 58) death place = Toronto, Ontario other names = known for = The Fur Trade… …
104Diego Garcia — For other uses, see Diego Garcia (disambiguation). Diego Garcia IATA: NKW – ICAO: FJDG Summary …
105Invasion — This article is about military invasions. For other uses, see Invasion (disambiguation). Warfare Military history Eras Prehistoric …
106Modern history — Modern and Modern Age redirect here. For other uses, see Modern (disambiguation) and Modern Age (disambiguation). Human history This box: view · talk · …
107Atlantic Ocean — Atlantic , North Atlantic , South Atlantic , and Atlantic Basin redirect here. For other uses, see Atlantic (disambiguation), North Atlantic (disambiguation), South Atlantic (disambiguation), and Atlantic Basin (disambiguation). The Atlantic… …
108Battle — This article is about combat. For other meanings, see Battle (disambiguation). Generally, a battle is a conceptual component in the hierarchy of combat in warfare between two or more armed forces, or combatants. In a battle, each combatant will… …
109Puerto Rico — This article is about the Commonwealth of Puerto Rico. For other uses, see Puerto Rico (disambiguation). Commonwealth of Puerto Rico Estado Libre Asociado de Puerto Rico …
110Aviation in World War I — One of the many innovations of World War I, aircraft were first used for reconnaissance purposes and later as fighters and bombers. Consequently, this was the first war which involved a struggle for control of the air, which turned it into… …
