This paper will explore new Army requirements based on the September 2001 Quadrennial Defense Review's guidance. The paper is based on the assumptions that 1) end strength may increase but only enough to fill Army authorizations (around 530K) and 2) a draft is not politically acceptable at this time. In particular, the paper examines force structure requirements to support homeland security-related requirements in an extended war against terrorism. This paper will show that the Army should apportion forces for homeland security and give them new missions, force structure, and doctrine. However, the Army, which includes the Army National Guard and the U.S. Army Reserve, faces a conundrum because it must also retain its focus on fighting the Nation's land battles--the unique capability the Army provides the nation.