The Marine Corps Reserve is a branch of the United States Marine Corps that allows individuals to serve part-time while maintaining civilian careers or education. Reservists typically train one weekend a month and participate in annual training, ensuring they are ready to support active-duty Marines when needed. Members of the Marine Corps Reserve can be called upon during emergencies, natural disasters, or military operations. This structure provides the military with a flexible force that can be mobilized quickly, while also allowing reservists to balance their military duties with personal and professional lives.