North Vietnam launched an invasion of South Vietnam. ... The attack of two U.S. destroyers by the North Vietnamese.
Answer: President Dwight Eisenhower proclaimed standards for flying the American flag at half staff on March 1, 1954. Prior to this date, there were no official rules for flying the flag at half staff, which led to policies that differed from area to area.
Explanation:
<span>The answer is the 3rd choice "Taken over land where American Indians hunted or gathered food." </span>