U.S. Army Corps of Engineers Col. Aaron Reisinger, Chicago District Commander, listens to U.S. Secretary of the Army Ryan McCarthy talk to medical providers at McCormick Place Convention Center. Distinguished visitors toured the newly installed isolation pods at McCormick Place Convention Center in response to the COVID-19 pandemic in Chicago, April 17, 2020. Approximately 60 members of the Illinois Air National Guard were activated to support the US Army Corps of Engineers and the Federal Emergency Management Agency (FEMA) to temporarily convert part of the McCormick Place Convention Center into an Alternate Care Facility (ACF) for COVID-19 patients with mild symptoms who do not require intensive care in the Chicago area. (U.S. Air National Guard photo by Master Sgt. Shelly Stark)