The "Regular Army" refers to the full-time, professional military force of a country, primarily responsible for national defense and military operations. Members of the Regular Army are career soldiers who undergo extensive training and serve on active duty, often for several years or even a lifetime. This force is distinct from reserve components, which consist of part-time soldiers who can be called upon during emergencies. In the United States, the Regular Army is one of the branches of the U.S. Army, which is part of the Department of Defense. It plays a crucial role in maintaining military readiness and responding to various global challenges, including conflicts and humanitarian missions. Regular Army personnel are typically stationed at bases both domestically and internationally.