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In September 1950, US President Harry Truman sent the Military Assistance Advisory Group to Vietnam to assist the French in the First Indochina War.
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From 1954 to 1975, Vietnam was again divided into two separate nations, divided by the Bến Hải River in Quảng Trị Province at the 17th parallel.
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Weapons and men from North Vietnam began infiltrating the South.
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The number of military advisors in South Vietnam raised to 12,000
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