Three U.S. veterans who served during World War II in a secret unit known as the Ghost Army that used inflated tanks and sound effects to fool their enemies were awarded the Congressional Gold Medal on Thursday, 80 years after they saw combat.

Their WWII mission was secret for decades. Now the Ghost Army gets the Congressional Gold Medal

Three U.S. veterans who served during World War II in a secret unit known as the Ghost Army that used inflated tanks and sound effects to fool their enemies were awarded the Congressional Gold Medal on Thursday, 80 years after they saw combat.