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Here's a story that will make you smile.

Ten years ago, a young boy wrote a letter to a soldier for a second-grade assignment, offering her free pizza if she ever visited his hometown.

A decade later, she took him up on the offer!

U.S. Army Lt. Col. Sharlene Pigg (Ret.) and Collin Martin, now 17 years old, appeared on "Fox and Friends" this morning to share their touching story.

Martin explained that after Pigg came and spoke to his second-grade class about the military, he and his classmates wrote her letters of thanks and encouragement.

Martin's letter said he hoped Pigg would come home soon. He also included a coupon to his family's pizza shop in Kennesaw, Georgia.

"Ultimately, what stood out with Collin's letter more than anyone else's was the personal invitation," Pigg said. "Collin had invited me when I came home to please come join his family and him for a pizza when I returned safely. So, here I am."

Martin said it was an "amazing experience" to meet Pigg in-person a decade after she spoke to his class.

Watch the feel-good segment above.

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