Pandemic ArcMap Anaysis. Montana’s Department of Public Health and Human Services (DPHHS) participated in a four-day statewide disaster preparedness exercise known as Operation Last Chance One. Designed to challenge emergency managers and test emergency response systems, the exercise included participation from county and tribal health departments, as well as hospitals and clinics. Operation Last Chance One tested the ability of state and local health departments and their partners to coordinate and communicate effectively during an emergency. More than 500 personnel and volunteers from more than 100 agencies and organizations participated in the exercise. ESRI and ESRI Business Partner GCS were invited to participate.