Representatives of the original signers of the January 27 cease-fire sign a new 14-point agreement calling for an end to all cease-fire violations in South Vietnam. Coming at the end of month-long negotiations between Henry Kissinger and Le Duc Tho, the settlement included an end to all military activities at noon on June 15; an end to U.S. reconnaissance flights over North Vietnam and the resumption of U.S. minesweeping operations in North Vietnamese waters; the resumption of U.S. talks on aid to North Vietnam; and the meeting of commanders of opposing forces in South Vietnam to prevent outbreaks of hostilities. Fighting had erupted almost immediately after the original cease-fire that had been initiated as part of the Paris Peace Accords. Both sides repeatedly violated the terms of the cease-fire as they jockeyed for position and control of the countryside. This new agreement proved no more effective than the original peace agreement in stopping the fighting, which continued into early 1975 when the North Vietnamese launched a massive offensive that overran South Vietnam in less than 55 days. The war was finally over on April 30, 1975, when North Vietnamese tanks rolled into Saigon.