Many of the thousands of women working as prostitutes during the Vietnam War were held against their will by pimps and lured with the promise of good-paying, respectable jobs so they could support their families in a country torn apart by war. They would never see most of the money, if any, paid to their pimps or the bar owners by the American soldiers. In some cases women were injected with silicone to make them more shapely so that the American soldiers would feel more “at home” with the Asian women.
While the U.S. military did not officially condone the practice of prostitution around military bases, they didn’t do anything to stop it, either. In many cases, soldiers on leave would go to surrounding countries where a similar set-up existed, such as in Thailand. Many of these hubs of prostitution were referred to as ‘rest & recreation’ sites. So even among the U.S. military, the practice was unofficially encouraged. If the men were kept happy, they followed orders and stayed in line.
And there were many instances of rape by soldiers during the war, among the other atrocities committed against the civilian population. It seems there has always been the misguided perception that allowing prostitution or establishing comfort stations would reduce rape, but that is a fallacy, as is the idea that the spread of sexually transmitted disease can somehow be controlled.