In 1968, the interference by Nixon in the negotiations to end the Vietnam war was the strategy of Bombing the Northern part of Vietnam.
Richard Nixon was the president of Vietnam in the year 1968.
Nixon's strategy to prevent the Vietnam war was referred to as Vietnamization in which the military forces of Americans were get replaced by the military troops from South Vietnam. It involves the serious bombing attacks on North Vietnam so that the supply lines of the Vietcong could be shattered down.
Therefore, the bombing attacks on North Vietnam were one of the strategies to end the Vietnam war in 1968.
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