Colonel (Ret.) JP Mercier is a former Canadian Armed Forces (CAF) infantry officer with over 30 years of operational and command experience. A graduate of the Canadian Forces College, his career spans multi-national deployments, UN command positions, and high-level assignments in NATO tactical doctrine development. Crucially, his recent work involved evaluating frontline medical evacuation constraints and UAS interdiction tactics during forward military training missions in Eastern Europe. Today, he serves as a senior operational consultant for defense think-tanks, specializing in combat survivability systems, prolonged field care logistics, and modern trench warfare architecture.