Negotiations that led to the agreement began in 1968 after several long delays. As a result of the agreement, the International Monitoring Commission (ICC) was replaced by the International Monitoring Commission (ICCS) to comply with the agreement. The main negotiators of the agreement were Henry Kissinger, U.S. national security adviser, and Lé C Théc, a member of the North Vietnamese political bureau. Both men were awarded the Nobel Peace Prize in 1973 for their efforts, although he refused to accept it. The Paris Peace Agreement (Vietnamese: Hiep enh Paris v` Viét Nam), officially titled „Agreement for the End of War and the Restoration of Peace in Vietnam“ (Hipénh v`ch`m d`t chién tranh, the ở peace agreement signed on January 27, 1973 to make peace in Vietnam was a peace treaty signed on January 27, 1973. The treaty included the governments of the Democratic Republic of Vietnam (north of Vietnam), the Republic of Vietnam (south of Vietnam) and the United States, as well as the Republic of South Vietnam (PRG), which represented the indigenous revolutionaries of South Vietnam. Until that time, American ground forces had been sidelined with degraded morality and gradually withdrew to coastal areas, without participating in any offensives or numerous direct struggles for the previous two-year period.   In exchange, the Paris Agreement would eliminate all remaining U.S.
forces, including air and naval forces. Direct U.S. military intervention ended and fighting between the three remaining powers was temporarily suspended for less than a day.  The agreement was not ratified by the U.S. Senate.   North Vietnam insisted for three years that the agreement could not be reached unless the United States agreed to remove South Vietnamese President Nguyen Vén Thiu from power and replace him with someone acceptable to Hanoi. Nixon and Kissinger were not prepared to sign an agreement to overthrow a government that had not overthrew the NLF by force of arms, although the scale of North Vietnam`s claims is controversial. Historian Marilyn B. Young argues that the content of Hanois` proposal was systematically distorted by his initial plea for Thiu`s assimilation to what Kissinger advocated as a demand for his downfall.
 On January 15, 1973, President Nixon announced the suspension of offensive actions against North Vietnam.