Prior to the American Revolution, there was neither budget nor manpower nor government desire to maintain a full-time army. Therefore, the armed citizen-soldier carried responsibility. Service in militia, including providing one's own ammunition and weapons, was mandatory for all men. Yet, as early as the 1790s, the mandatory universal militia duty evolved gradually to voluntary militia units and a reliance on a regular army. Throughout the 19th century the institution of the organized civilian militia began to decline. The unorganized civilian militia, however, still remains even in current U.S. law, consisting of essentially everyone from age 17 to 45, while also including former military officers up to age 64, as codified in .