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The magnetic compass was first invented as a device for divination as early as the Chinese Han dynasty and Tang dynasty (since about 206 BC). [1] [3] [34] The compass was used in Song dynasty China by the military for navigational orienteering by 1040–44, [22] [35] [36] and was used for maritime navigation by 1111 to 1117. [37]
The M-1950 U.S. military lensatic field compass with self-luminous lighting (designated the Model 3H by Cammenga) is fitted with self-luminous tritium vial lighting. Under U.S. military specification (MIL-SPEC) performance criteria, ten pre-production samples of the M-1950 are required to meet a battery of performance, durability, and accuracy ...
Operation Observant Compass was an American military operation initially focused on apprehending Joseph Kony and the Lord's Resistance Army in Central Africa. It was overseen by United States Africa Command .
Throughout its history, the United States has engaged in numerous military conflicts. The country has officially declared war on foreign nations on five occasions. Additionally, the United States Congress and the United Nations Security Council have authorized and funded various military engagements.
A modern military compass, with included sight device for aligning. A compass is a device that shows the cardinal directions used for navigation and geographic orientation. It commonly consists of a magnetized needle or other element, such as a compass card or compass rose, which can pivot to align itself with magnetic north.
The Adrianov compass (Russian: Компас Адрианова) is a military compass designed by Russian Imperial Army topographist Vladimir Adrianov in 1907. Wrist-worn versions of the compass were then adopted and widely used by the Red and Soviet Army . [ 1 ]
Timeline of American women in war and the U.S. military from 1945 to 1999; Timeline of women in war in the United States, Pre-1945 ... Timeline of history of ...
Timeline of the War of 1812; Timeline of the War on Terror; Timeline of World War I; Timeline of World War I (1917–1918) Timeline of World War II (1941) Timeline of World War II (1942) Timeline of World War II (1943) Timeline of World War II (1945–1991)