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.
Harry S. Truman sent troops into bloody battles in Korea without asking Congress to declare war. Lyndon B. Johnson proposed no time limits in the Gulf of Tonkin resolution during Vietnam. Bill Clinton waged the Kosovo war without congressional authorization.