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.
The offer is rejected by Hanoi. June 8, 1969 - President Nixon meets South Vietnam's President Nguyen Van Thieu at Midway Island and informs him U.S. troop levels are going to be sharply reduced. During a press briefing with Thieu, Nixon announces Vietnamization of the war and a U.S. troop withdrawal of 25,000 men.