The military benefits and tragic repercussions of the bombing and invasion have been contentious subjects. Westmoreland thought that it was "unfortunate" that Nixon had announced the capture of COSVN as one of the primary objectives of the Cambodian operations. This left Nixon open to critics, who were already scornful of Nixon, to mock the notion of the president obsessing over COSVN as if it were a "holy grail". US Secretary of State Henry Kissinger was quoted as saying that the Cambodian invasion to destroy COSVN and other headquarters complexes bought the Americans and South Vietnamese a year. Members of the COSVN generally agree, but view the long-term political advantage gained as being worth the cost of the evacuation.