Bristol Palin is engaged to war hero Dakota Meyer.

"I'm definitely the luckiest guy ever to be able to spend the rest of my life with @bsmp2 #shesaidyes," Meyer, 26, wrote on Instagram Saturday morning.

Meyer, a former Marine, was awarded the Medal of Honor in 2011 for saving members of his embedded training team during a six-hour firefight in Afghanistan in 2009. He is only the third living recipient of the honor since Vietnam, according to Meyer's website.

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"Truly the luckiest girl in the world, cannot wait to marry this man!!!!" Palin, 24, wrote, sharing a photo that includes a shot of her huge diamond ring.

A photo posted by Bristol Palin (@bsmp2) on

This is the first marriage for both, although Palin was famously engaged to Levi Johnston, the father of her son Tripp, 6.

Her mother Sarah Palin issued a statement following the happy news. "Our families couldn't be happier for Bristol and Dakota," the former vice presidential candidate said. "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."

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