Complex sentence: The 911th Technical Rescue Engineer Company, formerly the MDW (Military District of Washington) Engineer Company, is the only technical rescue company in the Department of Defense and specializes in urban search and rescue (USAR).
Split into simpler sentences: The 911th Technical Rescue Engineer Company, formerly the MDW (Military District of Washington) Engineer Company, is the only technical rescue company in the Department of Defense. It specializes in urban search and rescue (USAR).