The correct answer is:
Tet Offensive.
The Tet Offensive (1968) by North Vietnam and the Viet Cong, was one of the most extensive military operations of the Vietnam War. It started on January 30, via units of the Viet Cong and North Vietnamese People's Army of Vietnam attacking the South Vietnamese Army of the Republic of Vietnam, the United States Armed Forces, and their allies.
The Mesheviks and the Bolsheviks were two totally different movements in Russia from ideological perspective and their actions. The Mesheviks wanted a gradual, peaceful change in the country, with progressive methods used, and by including the Middle class in the process, with the end goal being modernization of the country. The Bolsheviks, on the other side, wanted radical changes, and that was supposed to be done by the elites, not by the middle class people. Also, instead of modernizing the country, the Bolshevkis wanted to establish communism in the country.
King believed that the Vietnam war has deeply affected the US policy in the US due to too much spending during the Vietnam war. There were projects that had been stopped or funds were cut down because the annual budget is allocated for the war. The Great Society policy was one of the projects that was deeply affected by the Vietnam War.
Explanation:
The Vietnam War had influenced the foreign policy. Because of the US had difficulties in winning in North Vietnam, Soviet and Chinese. The US had tried to do something less confrontational ways in order to reduce opposition between the US and different communist state.