An American punches a Vietnamese man in the face as he tries to close the doorway of an airplane overloaded with refugees seeking to flee Nha Trang, which was being taken over by Communist troops in April 1975

An American punches a Vietnamese man in the face as he tries to close the doorway of an airplane overloaded with refugees seeking to flee Nha Trang, which was being taken over by Communist troops in April 1975