Documents obtained under freedom of information laws in the United States have confirmed that the country’s military considered developing a “gay bomb.”

In 1994 the US Air Force research department requested $7.5m to create a weapon that would release a chemical causing enemy soldiers to become sexually attracted to each other.

The proposal described the weapons as “distasteful but completely non-lethal.” Pentagon officials blocked the project.

Edward Hammond used the Freedom of Information Act to obtain a copy of the proposal and passed it to CBS television.

“The Air Force lab proposed that a bomb be developed that contained a chemical that would cause enemy soldiers to become gay, and to have their units break down because all their soldiers became irresistibly attractive to one another,” Mr Hammond told CBS.

“The notion was that a chemical that would probably be pleasant in the human body in low quantities could be identified, and by virtue of either breathing or having their skin exposed to this chemical, the notion was that soldiers would become gay.”

Gay groups in the US, where openly gay, bisexual and lesbian people are banned from serving in the military, expressed disgust at the idea of a “gay bomb.”

“Throughout history we have had many brave men and women who are gay and lesbian serving the military with distinction,” Geoff Kors of Equality California said in a statement.

“So, it’s just offensive that they think by turning people gay that the other military would be incapable of doing their job.

“And it’s absurd because there’s so much medical data that shows that sexual orientation is immutable and cannot be changed.”