Congress is set to vote as early as this week on repealing the military policy that bans homosexuals from serving openly in the armed services.
Shortly after taking office, President Barack Obama promised to reverse "Don't ask, Don't tell" and top U.S. military leaders supported him.
"It is my personal belief that allowing gays and lesbians to serve openly would be the right thing to do," said Joint Chiefs Chairman Adm. Mike Mullen.
Secretary of Defense Robert Gates agreed, saying the changes "represent an important improvement in the way the current law is put into practice."
The Pentagon then began a year-long review of how the policy change would be implemented.
CBN News spoke with Tommy Sears of the Center for Military Readiness about opposition to repealing "Don't ask, Don't tell." Click play to watch.
The White House hoped to delay a congressional vote until the Pentagon finished its study -- allowing Democrats to avoid criticism in upcoming re-election bids.
However, an amendment has been added to the annual defense spending bill that repeals "Don't ask, Don't tell." That recent move could force a vote on the issue as early as Thursday.
The Senate Armed Services Committee will also debate and vote on the measure this week.
The majority of Republicans are promising to oppose the legislation.
"The American people don't want the American military to be used to advance a liberal political agenda," said GOP Rep. Mike Pence. "And House Republicans will stand on that principle."
"Numerous military leaders tell me that 'Don't ask, Don't tell' is working and that we should not change it now," Sen. John McCain, R-Ariz., added. "I agree."
Military chaplains are among those in uniform who are most opposed to repealing the policy. They fear reversing "Don't ask, Don't tell" will force them to change the way they minister.
"Soldiers and military families will also pay a price," said retired military chaplain Richard Young. "When the message of Bible-believing chaplains is muzzled, soldiers and families no longer have the benefit of the full counsel of God from religious leaders they depend upon for biblical teaching, guidance and counsel."