Former Army Lt. Dan Choi on Tuesday delivered emotional testimony during his trial over protesting “Don't Ask, Don't Tell,” the policy set to expire on September 20 that bans gay and bisexual troops from serving openly.

Choi was discharged under the policy for revealing his sexuality during an interview with MSNBC's Rachel Maddow.

He went on to become a vocal opponent of the policy, appearing on television, at speaking engagements and during rallies.

The U.S. Park Police on November 15, 2010 arrested 12 gay rights activists, including Choi and Army Capt. James Pietrangelo, after they chained themselves to the White House fence in protest of the policy.

Pietrangelo testified for more than 2 hours on Tuesday, and Choi took the stand for nearly 3 hours, gay weekly Metro Weekly reported.

At times Choi became emotional as he compared the various protests against “Don't Ask, Don't Tell” to the civil rights demonstrations of the 1960s. He added that he was “insulted” by his prosecution on federal charges.

Staying true to his theme of civil disobedience, Choi said of his March 2010 arrest protesting the policy: “I believe it was a transformative moment when people realized that a complacent, comfortable approach, or attending fancy dinners in suits was no longer acceptable.”