WORLD CIVILIZATION

Detailed explanation-1: -A standing army is a permanent, often professional, army. It is composed of full-time soldiers who may be either career soldiers or conscripts.

Detailed explanation-2: -mercenary, hired professional soldier who fights for any state or nation without regard to political interests or issues. From the earliest days of organized warfare until the development of political standing armies in the mid-17th century, governments frequently supplemented their military forces with mercenaries.

Detailed explanation-3: -a permanently organized military force maintained by a nation.

Detailed explanation-4: -A professional soldier is a full-time and military-trained combat professional. Professional soldiers are most common in the Army branch of the United States military but can also exist in other branches. For example, Navy Seals are professional soldiers in the Navy branch of the United States military.