Military volunteer

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A military volunteer (or war volunteer) is a person who enlists in military service by free will, and is not a conscript, mercenary, or a foreign legionnaire. Volunteers sometimes enlist to fight in the armed forces of a foreign country, for example during the Spanish Civil War. Military volunteers are essential for the operation of volunteer militaries. Many armies, including the U.S. Army, formerly distinguished between "Important Volunteers" enlisted during a war, and "regulars" who served on long-term basis.