"As of Summer 2003, a higher percentage of the total Army appears committed to active combat operations than during any period since World War II.1 While the Army moves to transform at a forced pace, it still defends against the most certain foreign threat the continental United States (CONUS) has faced since the War of 1812. Change is not new; it is a staple of defense.2 However, new combinations of requirements--quick response (expeditionary) and long-term national commitments (enduring)--require unusual solutions both overseas and in CONUS. Several new challenges facing the Army are implementation requirements that stem from the September 2002 National Security Strategy of the United States. These competing requirements include-- 1) Preemption of global terrorist attacks. 2) Support of domestic homeland security. 3) Reconstruction of failed states to eliminate sources of terrorism. 4) Evolving landpower for total-spectrum operations that accelerate Transformation across all services. The result is that America's Army must become more expeditionary--the first with the most--and more enduring--capable of providing long-term domination while rebuilding multiple failed states and defending the homeland."
Defense Technical Information Center (DTIC): http://www.dtic.mil/dtic/