CHALLENGE COIN-Seal Team FOUR- US NAVY NAVAL SPECIAL WARFARE DEVELOPMENT GROUP. UNITED STATES NAVY NAVAL SPECIAL WARFARE DEVELOPMENT GROUP SEAL TEAM FOUR SPECIAL EDITION CHALLENGE COIN WITH CASE! 40 MM FULL COLORIZED CHALLENGE COIN ABOUT SEAL TEAM FOUR: SEAL Team FOUR SEAL Team FOUR is based at Little Creek, VA. Commanded by a Navy Commander (O-5), it has ten operational platoons and a headquarters element. SEAL Team FOUR?s geographic area of concentration is Central and South America. SEAL Team FOUR deploys platoons to Naval Special Warfare Unit EIGHT in Panama, aboard Amphibious Ships deployed to Second Fleet, and in support of the annual UNITAS cruise, and conducts DFTs throughout the Central and South American theater. SEAL Team FOUR is the only SEAL Team with a viable standing language capability, Spanish.