Rare SOCCENT SEAL / Special Forces / Marine Raiders Task Force 3.1 Yemen Deployment Challenge Coin. This is a highly collectible and rare Joint Special Operations Task Force deployment challenge coin. Featuring a custom die-cut design in the shape of crossed Yemeni Jambiya daggers, this coin honors Task Force 3.1 operations in Yemen alongside a September 11, 2001 commemorative tribute. KEY DETAILS & HIGHLIGHTS. Unit / Command: Special Operations Command Central (SOCCENT) / Task Force 3.1 (Combined Special Operations Forces: Navy SEALs, Green Berets, Marine Raiders). Design: Custom 3D crossed Jambiya daggers with ornate handle detailing. Emblem Insignia: Trident (SEAL), Jump Wings / Special Forces motifs, U. Excellent pre-owned collector condition with crisp metal detail and rich finish. Packaged securely with tracking included.