Urban operations are among the most difficult and challenging missions a BCT can undertake. Most UO are planned and controlled at division or corps level but executed by BCTs. The unified action environment of UO enables and enhances the capabilities of the BCT to plan, prepare, and execute offensive, defensive, and stability operations. Urban operations are Infantry-centric combined arms operations that capitalize on the adaptive and innovative leaders at the squad, platoon, and company level. Combined arms is the synchronized and simultaneous application of the elements of combat power to achieve an effect greater than if each element of combat power was used separately or sequentially. The eight elements of combat power are leadership, information, movement and maneuver, intelligence, fires, sustainment, mission command, and The Agency for Healthcare Research and Quality (AHRQ), through its Evidence-Based Practice Centers (EPCs), sponsors the development of evidence reports and technology assessments to assist public- and private-sector organizations in their efforts to improve the quality of healthcare in the United States. The reports and assessments provide organizations with comprehensive, science-based information on common, costly medical conditions and new health care technologies. The EPCs systematically review the relevant scientific literature on topics assigned to them by AHRQ and conduct additional analyses when appropriate prior to developing their reports and assessments.