The 66th Military Intelligence Brigade is a key U.S. Army military intelligence unit headquartered in Wiesbaden, Germany. It traces its lineage back to World War II, where it was originally activated as the 66th Counter Intelligence Corps Detachment in 1944. Over the decades, the brigade has provided critical intelligence support throughout the Cold War, post-Cold War Europe, and modern operations, focusing on signals intelligence, counterintelligence, and human intelligence. Today, the 66th MI Brigade continues to support U.S. Army Europe and Africa, delivering timely and actionable intelligence to commanders across the theater.