Sen. Joe Lieberman and Democrats on the Senate Armed Services Committee have introduced legislation on Capitol Hill to repeal "Don't Ask, Don't Tell."

The Military Readiness Enhancement Act of 2010 was launched, Wednesday, to reverse the military policy that prevents homosexuals from serving openly in the armed forces. A separate bill has already been introduced in the House.

"We're going for full repeal because that really is the solution we need to this problem," Lieberman said. "We're going to fight for as much support as we can get."

The plan comes as the Pentagon prepares for a nine-month study on gays in the military. The Defense Department's general counsel, Jeh Johnson, and the U.S. Army Forces Europe commander, Gen. Carter Ham, will lead the assessment.

GOP lawmakers already contend the study will be biased because it assumes Congress will repeal the 17-year-old policy.

The Army's top officer, Gen. George Casey, says he has "serious concerns" about repealing Don't Ask, Don't Tell because of how it would impact the military's readiness and effectiveness.