A Reservist is a member of a military reserve force, which is a group of trained individuals who are not in active duty but can be called upon to serve when needed. Reservists typically have civilian jobs or pursue education while maintaining their military training and readiness. They play a crucial role in supporting the armed forces during times of increased demand, such as during emergencies or conflicts. Reservists can serve in various branches of the military, including the Army, Navy, Air Force, and Marine Corps. They often participate in regular training exercises to keep their skills sharp and ensure they are prepared for deployment. This dual commitment allows them to contribute to national defense while balancing their civilian lives.