Democrats had been losing elections in what had long been considered solid Democratic territory in the South. Lyndon B. Johnson, a Democrat who took up the presidency after John F. Kennedy was assassinated, had become associated in the minds of voters with the civil rights movement. The civil rights movement aimed to give black Americans equality. This did not sit well with white voters in the South. In the 1964 presidential election, the Republican candidate, Barry Goldwater, won the states of Louisiana, Mississippi, Alabama, Georgia, and South Carolina. Nevertheless, Johnson prevailed and won the election. But it showed conservative Democrats were willing to shift to the Republican party if they felt it more closely aligned with their views.
Answer: Vietnam
Explanation:
Vietnam was originally divided into two (North and South Vietnam) in an attempt by the Western powers to weaken communism in the country. This eventually led to the Vietnam War of which the U.S. was heavily involved.
Towards the end of the war and as the U.S. was pulling out, the Communists gained the upper hand and as they began to capture more territory, people began fleeing South Vietnam by boat in order to escape communism. A lot of them eventually resettled in the U.S. in the last quarter of the 20th century.