JOINT BASE LEWIS-MCCHORD, Wash. -- U.S. service members set up the “Labyrinth of Horrors” Halloween event at Joint Base Lewis-McChord, Wash., Oct. 24, 2023. Better Opportunities for Single Service Members, or BOSS, created the event as this year’s Halloween haunted house attraction. BOSS and the JBLM Morale, Welfare and Recreation programs hold events to foster community support, strengthen resilience and enhance overall quality-of-life for service members and their families.