A Jumpmaster is a trained individual responsible for ensuring the safety and effectiveness of parachute jumps. They oversee the preparation, execution, and landing of parachute operations, making sure that all equipment is in proper working order and that jumpers are correctly briefed on procedures. In military contexts, a Jumpmaster often works with units like the U.S. Army or U.S. Air Force, where they play a crucial role in airborne operations. Their expertise helps minimize risks and enhances the overall success of missions involving parachuting from aircraft.