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Dead Hand, also known as Perimeter (Russian: Система «Периметр», romanized: Sistema "Perimetr", lit. '"Perimeter" System', with the GRAU Index 15E601, Cyrillic: 15Э601), [1] is a Cold War–era automatic or semi-automatic nuclear weapons control system (similar in concept to the American AN/DRC-8 Emergency Rocket Communications System) that was constructed by the Soviet Union ...
The English Channel proved invaluable in World War II as a deterrent to Nazi aggression. [7] England's relative isolation allowed allied forces to use it as a staging area for the D-Day invasion, which turned the tide of the war. The Rocky Mountains in North America proved a formidable perimeter protection of isolated native cultures for ...
Penetration of the center: This involves exploiting a gap in the enemy line to drive directly to the enemy's command or base.Two ways of accomplishing this are separating enemy forces then using a reserve to exploit the gap (e.g., Battle of Chaeronea (338 BC)) or having fast, elite forces smash at a weak spot (or an area where your elites are at their best in striking power) and using reserves ...
'"Perimeter" System'), a Cold War-era automatic nuclear weapons-control system used by the Soviet Union; Perimeter, a real-time strategy video game developed by Russian studio K-D Lab for Microsoft Windows; Visual field test (also perimeter), an eye examination that can detect dysfunction in central and peripheral vision
British infantry in a trench during the Battle of the Somme of World War I, 1916. During World War I, the increasing lethality of more modern weapons, such as artillery and machine guns, forced a shift in infantry tactics to trench warfare. Massed infantry charges were now essentially suicidal, and the Western Front ground to a standstill.
Many hypothetical doomsday devices are based on salted hydrogen bombs creating large amounts of nuclear fallout.. A doomsday device is a hypothetical construction — usually a weapon or weapons system — which could destroy all life on a planet, particularly Earth, or destroy the planet itself, bringing "doomsday", a term used for the end of planet Earth.
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A world war is an international conflict that involves most or all of the world's major powers. [1] Conventionally, the term is reserved for two major international conflicts that occurred during the first half of the 20th century, World War I (1914–1918) and World War II (1939–1945), although some historians have also characterized other global conflicts as world wars, such as the Nine ...