1973 in the Vietnam War for the U.S. Christmas bombing (Operation Linebacker II) and that "we deplore the action." President Nixon wrote a letter to President Nguyen Thieu of South Vietnam asking for Thieu's cooperation in the Paris peace negotiations and stating that "the unity of our two countries...would be gravely jeopardized if you persist in your present course." Thieu had scuttled a draft peace agreement reached in October 1972. Nixon pledged to respond with "full force" if North Vietnam violated the peace agreement. As U.S. National Security Adviser Henry Kissinger prepared to resume peace talks with North Vietnam in Paris, United States President Nixon
1973 in the Vietnam War War forced the U.S. to cease bombing communist forces in Cambodia in August and in November Congress adopted the War Powers Resolution which limited the U.S. President's authority to wage war. The Democratic Party members of the United States House of Representatives voted 154 to 75 to cut off U.S. funds for the war in Vietnam once all U.S. forces were withdrawn and U.S. Prisoners of war (POWs) were released. As President Richard Nixon and most Republicans opposed the cutoff, the vote had only symbolic impact. In Beijing, Chinese leader Zhou Enlai told North Vietnam's peace negotiator, Le Duc Tho,