Battle Assembly is the term used by the United States Army Reserve to describe monthly training, where soldiers practice and perfect their military skills and maintain individual and unit readiness in the event of mobilization and deployment. These training activities were formerly referred to simply as "drill" or "weekend drill", but according to former Chief of the Army Reserve, Lieutenant General James R. Helmly, the term was changed in 2005 to emphasize the need for Army Reserve soldiers' training to focus on continued preparation for fighting the Global War on Terrorism.