professional. They value their relationships with other soldiers, enjoy their social lives, and are satisfied with Army life." However, the authors cautioned that the survey sample consisted of only 81 soldiers and that "the findings of this study cannot be generalized to the U.S. Army as a whole or to any rank." Length of service The length of time that an individual is required to serve as a soldier has varied with country and historical period, whether that individual has been drafted or has voluntarily enlisted. Such service, depending on the army's need for staffing or the individual's fitness and eligibility, may involve fulfillment of a contractual obligation. That obligation might extend for the duration of an armed conflict or may be limited to a set number of years in active duty and/or inactive duty. As of 2023, service in the U.S. Army is for a Military Service Obligation of 2 to 6 years of active duty with a remaining term in the Individual Ready Reserve. Individuals may also enlist for part-time duty in the Army Reserve or National Guard. Depending on need or fitness to serve, soldiers usually may reenlist for another term, possibly receiving monetary or other incentives. In the U.S. Army, career soldiers who have served for at least 20 years are eligible to draw on a retirement pension. The size of the pension as a percentage of the soldier's salary usually increases with the length of time served on active duty. In media and popular culture Since the earliest recorded history, soldiers and warfare have been depicted in countless works, including songs, folk tales, stories, memoirs, biographies, novels and other narrative fiction, drama, films, and more recently television and video, comic books, graphic novels, and games. Often these portrayals have emphasized the heroic qualities of soldiers in war, but at times have emphasized war's inherent dangers, confusions, and trauma and their effect on individual soldiers and others. See also Marine Sailor Airman Mercenary Veteran Combatant Prisoner of war Military ranks Military compensation Women in the military by country References External links Catherine Calloway, "War in Literature and Drama," Oxford Bibliographies: https://www.oxfordbibliographies.com/display/document/obo-9780199791279/obo-9780199791279-0004.xml Military specialisms Military life Combat occupations