D Troop, 4th Cavalry Regiment. The Hunter-Killers. From the jungles of Vietnam to the deserts of the Middle East, D Troop earned its reputation as a hard-charging reconnaissance and direct action force. This tee carries the scroll — wear it with the history it represents. Available in Classic Tee, Long Sleeve, Crewneck Sweatshirt, and Hoodie in Black, Military Green, Navy, Tan, and White.