London - She joined the army as a man and is the highest-ranking transgender soldier. He is an actor and film-maker who was born a woman.
But Hannah Winterbourne and Jake Graf insist they are "just like any other bride and groom".
Winterbourne, 31, and Graf, 40, were married in a wedding they say was "like a Disney movie".
The bride wore a figure-hugging strapless white gown with a veil, while the groom was dressed in a smart dark suit with white tie.
The ceremony, at Chelsea Town Hall, was attended by close friends and family.The couple broke a glass under their feet in recognition of Graf’s Jewish heritage.
Winterbourne, who serves with the Royal Electrical Mechanical Engineers, will live with her new husband in army married quarters near her barracks. She told The Sun: said: "I never thought when I was younger this could happen to me. It was always a pipe dream."
She insisted: "We’re just like any other bride and groom. To me, I’m just another girl married to another guy. As you transition and meet someone new you kind of forget about your past."
Graf, who was in Eddie Redmayne film The Danish Girl, knew as a child that he wanted to be a boy and began gender reassignment in his late 20s.
The couple met after Graf saw a newspaper article about Captain Winterbourne three years ago and contacted her through social media. She says she was "absolutely terrified" ahead of their first meeting because she had never been on a date or had a boyfriend before, although it helped that Graf is also transgender.
"I didn’t have to explain myself. He knew how to deal with it. He understood," she said.
"I was really insecure about dating. But I decided now was the time to push myself out there and see if there was a person out there who could love me. And I hit the jackpot the first time."