Which statement best describes U. S. involvement in Vietnam? The Vietnam War officially ended with the Gulf of Tonkin Resolution that President Johnson urged Congress to approve and President Nixon put into action.

American citizens supported the Vietnam War throughout the conflict by holding rallies for the troops and volunteering for military service in sufficient numbers that a draft was not required.

The Tet Offensive brought the Vietnam War to a successful military conclusion by flooding the north with soldiers from the south.

U. S. presidents, beginning with Eisenhower and continuing with Kennedy, Johnson, and Nixon, involved the United States in an undeclared war in Vietnam sending over 500,000 U. S. soldiers into combat.