Mention the United Service Organizations -- almost universally known as the USO -- to most Americans, and the first thing you'll likely hear is "Bob H...

Mention the United Service Organizations -- almost universally known as the USO -- to most Americans, and the first thing you'll likely hear is "Bob H...

Mention the United Service Organizations -- almost universally known as the USO -- to most Americans, and the first thing you'll likely hear is "Bob...

Mention the United Service Organizations -- almost universally known as the USO -- to most Americans, and the first thing you'll likely hear is "Bob H...

Mention the United Service Organizations -- almost universally known as the USO -- to most Americans, and the first thing you'll likely hear is "Bob H...

Through Independence Day, HuffPost Impact is running a series of stories called "Breaking the Roles," highlighting the servicemen and women of our a...