The Devil's Brigade, officially known as the 1st Special Service Force, was a joint American-Canadian military unit formed during World War II. Established in 1942, it was composed of elite soldiers trained for unconventional warfare, including raids and amphibious assaults. The unit earned its nickname due to its fierce reputation and distinctive black and red insignia. The brigade played a significant role in several key operations, including the invasion of Italy and the liberation of Southern France. Their success in combat and unique tactics laid the groundwork for modern special forces, influencing future military operations and strategies across various conflicts.