sentences:  This was followed up by peacekeeping operations from 1997 through 1999 in Bosnia and Herzegovina (Operations Joint Guard and Joint Forge).This support for peacekeeping operations set the trend for future CA support of international efforts to aid war-torn countries, exemplified by the 411th's participation in Operation Joint Guardian in Kosovo from 1999 through 2000.Immediately following the 11 September 2001 attacks, members of the battalion volunteered to assist in recovery efforts at ‘Ground Zero’ in lower Manhattan.