When you have a number of choices to select from, use a list or a chart. Draw a circle or a semi-circle with a radius of about 4 - 6. Mark the choices off as degrees on the circle. Hold the pendulum in the center and the swing of the pendulum will line-up with the appropriate marked off selection.
April 24, 1965 - President Johnson announces Americans in Vietnam are eligible for combat pay. May 3, 1965 - The first U.S. Army combat troops, 3500 men of the 173rd Airborne Brigade, arrive in Vietnam.
Confidence votes 11. Lyndon Johnson. The first president to send a fighting force into Vietnam was President Lyndon B. Johnson although President Dwight D. Eisenhower sported the French in the First Indochina War with navy and air support no actual forces had set food inside Vietnam.