Barbara Walters on Tuesday will host a celebration marking the one year anniversary of “Don't Ask, Don't Tell” repeal.

Celebrating Our Heroes: A Tribute to America's Service Members & Veterans will take place aboard the Intrepid Sea, Air & Space Museum in New York City. The event, sponsored by Servicemembers Legal Defense Network (SLDN), OutServe and the Interbank Roundtable Committee (IRC), will honor Admiral Mike Mullen, the former Chairman of the Joint Chiefs of Staff, for his leadership role in repeal of the military policy which for 18 years banned gay and bisexual troops from serving openly.

“The addition of Barbara Walters as our emcee for the evening makes an already exciting lineup even more spectacular. It's only fitting that America's most influential and accomplished journalist – who has made history herself a time or two – would join us for this historic and emotional event,” Aubrey Sarvis, executive director of SLDN, said in a statement.

The “Don't Ask, Don't Tell” policy officially ended on September 20, 2011.

Tickets for Celebrating Our Heroes can be purchased at

(Related: Fears over DADT repeal prove unfounded as first anniversary nears.)