Canada and Australia lifted their bans in 1992, followed by Israel in 1993, and South Africa in 1998. The lift on bans did not result in a mass “coming out,” the Palm Center found, nor were there instances of increased harassment of or by gay people.
When Britain looked to repeal its ban, its military initially considered DADT. But they found it was a “disaster,” which “hadn’t worked,” was “unworkable” and was “hypocritical,” according to the Palm Center’s report, "Gays in Foreign Militaries 2010: A Global Primer."
Instead, the British military based its regulations on the Australian model, which simply ban public displays of affection, harassment and inappropriate relationships – regardless of whether the couple was gay or straight. In 2002, the British Ministry of Defense reconfirmed that “there has been no discernible impact on operational effectiveness” as a result of ending the gay ban and that “no further review of the Armed Forces policy on homosexuality” was necessary.
Concern that the repeal of DADT will reduce the number of volunteers is unfounded, according to Dr. Nathaniel Frank, primary author of the Palm Center Report. In Britain and Canada, roughly two-thirds of the military said it would refuse to serve with open gays, but in reality no more than three people in each country actually resigned, according to the report.
The US Army Research Institute for the Behavioral and Social Sciences studied the situation in Canada in 1994. It concluded that “negative consequences predicted in the areas of recruitment, employment, attrition, retention, and cohesion and morale have not occurred” since Canada's policy was changed.