During this same period , from January 1969 to May 1972 , U.S. combat deaths declined 95 percent from the 1968 peak .
War expenditures fell by about two - thirds .
During this same period , from January 1969 to May 1972 , U.S. combat deaths declined 95 percent from the 1968 peak , and war expenditures fell by about two - thirds .