Henry Kissinger announces at a news conference in Washington that the North Vietnamese have walked out of the ongoing private negotiations in Paris.
President Richard Nixon turned to private negotiations in August 1969 because of the all but total impasse in the official negotiations that had been in session since May 1968. The fact that these private talks were being conducted was not disclosed until January 25, 1972, when Nixon, in response to criticism that his administration had not made its best efforts to end the war, revealed that Kissinger had been conducting secret negotiations with North Vietnamese representatives in Paris. Although Kissinger had been able to make some progress in the private negotiations, the talks failed to achieve what President Nixon regarded as "just and fair agreement to end the war."
The central disagreement between Kissinger and the North Vietnamese negotiators was over the question of who would rule South Vietnam after any negotiated cease-fire. The North Vietnamese negotiators, headed by Le Duc Tho, demanded that the government of Nguyen Van Thieu be dissolved, that the South Vietnamese army be disbanded, and that a coalition government be installed, which would then negotiate for a truce. At the same time, the South Vietnamese were making their own demands. Over 100,000 North Vietnamese troops had occupied territory in South Vietnam during the 1972 Easter Offensive. Nguyen Van Thieu demanded that the North Vietnamese recognize Saigon's sovereignty over South Vietnam, which would make the continued presence of the North Vietnamese troops in the south illegal. The North Vietnamese refused Thieu's demands, saying that they would not recognize Thieu's government and walked out of the negotiations.
Kissinger charged that Hanoi was to blame for the failure to reach an agreement, and asserted that the U.S. would not be blackmailed or stampeded into an agreement. North Vietnam criticized the U.S. for breaking the agreement to maintain silence on the private negotiations. Nixon issued an ultimatum to Hanoi to send its representatives back to the conference table within 72 hours "or else." The North Vietnamese rejected Nixon's demand on December 18, and the president gave the order to launch Operation Linebacker II, an intensified bombing campaign of North Vietnam. Over the next 11 days--with the exception of Christmas Day--the "Christmas bombing" continued unabated. In all, roughly tons of bombs over North Vietnam, and Air Force and Navy fighter-bombers added another 5,000 tons. On December 28, the North Vietnamese agreed to Nixon's conditions for re-opening the negotiations and the next day, the president called an end to Linebacker II.