evidence: This is false. At least two former first ladies — Michelle Obama and Laura Bush — have visited U.S. troops in designated combat zones since first lady Pat Nixon went to South Vietnam in 1969. [...] A Facebook post claims that Melania Trump is the first president’s wife to visit troops in a combat zone since 1969. [...] Associated Press, Melania Trump not first FLOTUS to visit combat zone since 1969, May 30, 2019