US Armed Forces
Army
  • Ground forces of the United States military external image US_Army_Logo.gif
  • Originated from the 1775 Continental Army
  • Exists to support the national and international policies and interests of the government
  • Must be ready at all times to defend the nation against enemy attacks
  • Peacetime duties consist of disaster relief, civil works projects, and controlling civil disturbances

Navy
  • Water-based forces of the United States military
  • Originated as the Continental Navy during the American Revolution, but disappeared in 1785
  • Permenant Navy established 1798 and was relatively weak, but built strength in the 20th century (primarily WWII)
  • Responsibilities include protecting the U.S. coastline, cooperating with drug enforcement agencies, patrolling protected waters, providing ice-breaking services for ships, and developing construction standards and operational rules for deepwater ports
external image Navy.jpg
Air Force
  • Performs military duties by aircraft
  • During peacetime, works with other military and civilian agencies to develop and improve aircraft, rockets, and explore outer space.
  • During wartime, it seeks to destroy enemy air forces, ground targets, and supplies, as well as surveying enemy territory to gain strategic information
  • Supports ground and naval forces of the other armed services in battle
external image AirForce.png
Marine Corps
  • Recruited and trained for duty at sea and service on shore in naval campaigns.
  • Provides expeditionary forces to capture and defend bases for the Navy
  • Studies and develops warfare on land and water

Coast Guard
  • Provides law enforcement, military readiness, and safety in all waters under the jurisdiction of the United States external image military_united20states20coast20guard20seal_cd050406te_2_98x3_18224.jpg
  • During peacetime, it operates under the U.S. Department of Homeland Security
  • During wartime, it operates under the Department of the Navy







Source: Grolier Online: New Book of Knowledge