Joining the Army Reserves

ARMY RESERVE

SERVING WHEN NEEDED

Being in the Army Reserve allows you to pursue your civilian career or college education while  serving your community. In the Army Reserve, you will spend one weekend a month in training and two weeks a year attending a Field Training Exercise (FTX). In times of war, Soldiers in the Army Reserve may be called up to Active Duty to provide their expertise for mission success. Service options for the Army Reserve range from three to six years, depending on your Army Reserve job.
Within the Army Reserve, you can choose to serve either as an enlisted Soldier or an officer. Each has its own specialized training, responsibilities and areas of expertise. Both work together to achieve mission success even in the harshest of conditions.

 http://www.goarmy.com/about/service-options/army-reserve.html