Colonel Bernd Horn’s monograph on the legacy of Canadian Special Operations Forces (SOF) highlights the colorful history and heritage of SOF from a vital partner nation. Horn reaches back to the 17th and 18th centuries with the Canadian Ranger tradition. He recounts Canada’s entry into World War II and its SOF experience with the British-led Special Operations Executive.  He highlights a combined U.S./Canadian unit, the First Special Service Force, which trained together in Montana and fought alongside each other earning the moniker “Black Devils” by the Germans. Colonel Horn then continues to present day. He provides a brief but exciting recap of Canadian SOF history that not only enriches our understanding of SOF from a key ally, but also highlights the historic bonds and military experiences that our two great nations share.