War on the Rocks – The biggest challenge for the stand-in forces concept right now is that it puts marines inside high-threat areas with minimal logistics sustainment. This requires the Marine Corps to develop and train for a sustainment concept that is light, flexible, responsive, resilient, and redundant. This plan should enable decreasing replenishment time and maintain each stand-in force unit’s low signature. In the commandant’s words, “To persist inside an adversary’s weapons engagement zone, our Stand-in Forces must be set and sustained by logistics capabilities designed for distributed operations over long distances in a contested environment.” How can the joint force replenish supplies, maintain equipment, and restock combat losses while keeping stand-in forces in the fight?