While a new commander’s arrival brings a Change of Command—a formal passing of authority—the role of command sergeant major, or CSM, carries a different weight. For the CSM, it isn’t about authority; it’s about responsibility. The Change of Responsibility ceremony is a testament to that unique and often unseen duty—a duty that runs through every layer of the U.S. Army, from the strategic missions to the day-to-day lives of Soldiers and civilians.