See Prince Harry's Emotional Moment With US Marine Kirstie Ennis

— -- As Prince Harry greeted the Walking With The Wounded team at Buckingham Palace today, he shared an emotional moment with a 24-year-old U.S. Marine.

Kirstie Ennis, who was wounded in a crash in Afghanistan three years ago, marked the end of her 1,000-mile trip today by gifting the prince with a dog tag in honor of another service member.

Ennis left 24 other dog tags around the United Kingdom during the trip, according to People magazine. She was planning on leaving this last one at Buckingham Palace, People reported, but then gave it to Harry himself.

"No I can't, I can't accept this," Harry said, according to People.

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"Please, you know what this means to me, I want you to," Ennis replied, according to People, before sharing a heartfelt embrace with the prince.

Ennis was expected to have her leg amputated this summer, People reported, but she postponed the surgery to come take part in the U.K's Walking With The Wounded trip. Ennis, a fellow U.S. Marine and four former British service members participated in the walk.