By Reuters
Hours later, the House approved a bill containing language aimed at ending the Clinton-era "don't ask, don't tell" policy.
In his first major address to U.S. troops on the politically charged legislation, Gates said he did not expect the Senate to pass a repeal for months, perhaps not until the end of the year.
Even then, President Obama would have to sign the legislation, and the Pentagon would have to give final approval. The latter must await a comprehensive review that includes input from troops.
"Every man and woman in uniform is a vitally important part of this review. We need to hear from you and your families so that we can make these judgments in the most informed and effective manner," Gates said. "So please let us know how to do this right".
Pentagon spokesman Geoff Morrell said Gates decided to make the video to address "a lot of political posturing and maneuvering on this issue this week".
"He wanted to make it clear that the department's review of how to smartly implement a change in the law is more important than ever, and their participation in it is absolutely critical to its success," Morell said.
The House on Thursday approved an amendment aimed at ending the policy, which allows gays to serve if they keep quiet about their sexual orientation but expels them it if becomes known.
A Senate committee passed a similar measure Thursday, but more legislative hurdles remain.
