... photo taken from in front of the Rex Hotel looking down the main boulevard toward the riverfront ... note all the Americans in civilian clothes. In 1966, off-duty US soldiers were authorized to wear civilian clothes ... this was later changed. Of further interest may be the barricades you see on the right side of the photo. These are directly in front of the Rex Hotel (officer quarters) (out of sight to my right rear)and positioned to deter use of car bombs.