Bristol Palin and Medal of Honor Recipient Marine Sgt. Dakota Meyer Engaged

Bristol Palin, 24, the eldest daughter of Sarah Palin said yes to the proposal of Sgt. Dakota Meyer, 26, a former U.S. Marine who is only the third living recipient of the U.S. Medal of Honor since Vietnam.

Bristol shared the news via her Instagram account "Truly the luckiest girl in the world, cannot wait to marry this man!!!!" with a photo of the couple's sweet kiss, and the cushion-cut diamond engagement ring on another snap.

Sgt. Dakota Meyer was given the highest military decoration awarded by the United States government - in recognition of his acts of extraordinary valor on Sept. 8, 2009. According to US Weekly, he said "I'm definitely the luckiest guy ever to be able to spend the rest of my life with @bsmp2," the 26-year-old captioned his own Instagram pic of the future spouses. "#shesaidyes."

Meyer proposed during the Rascal Flatts Vegas Riot! show at the Hard Rock Hotel & Casino's The Joint on Friday, March 13. "Rascal Flatts" frontman Gary LeVox brought them up on stage, thanked Meyer for his service, and dedicated "Bless the Broken Road" to them. LeVox revealed to the audience that Meyer popped the question backstage just moments before.

On her Facebook account, Sarah Palin, mother of Bristol shared: "Our families couldn't be happier for Bristol and Dakota! We're honored to welcome Dakota into our family. He's an American hero and patriot whose service to our country - like all his fellow Medal of Honor recipients - has been above and beyond the call of duty; but even more important is, he's a good and kind man who loves Bristol and Tripp, and is loved by them." You can check the full details of her message to Bristol and Dakota's engagement at Sarah Palin's Facebook page.

Bristol posted a sweet picture of Meyer with son Tripp (with her ex-fiancee Levi Johnston) a few days before the engagement.