To do this, they teamed up with the United States Playing Card Company to create what became known as Map Decks.
For some, they were a great way to deliver a message.ĭuring World War II, American intelligence agencies were keen to help Allied POWs escape from German prison camps. As it turns out, they are also a great way to disseminate information.
They are easy to carry and a great way to pass down time.
Playing cards are ubiquitous among troops in combat zones.
