Tom Kinahan N1CPE of Army MARS has issued new instructions for the on-going MARS exercise. On November 16, 2019 at 10:00 PM EST or (17 NOV 2019) 0300Z will be the 60 Meter broadcast on channel 1 (5330.5 kHz) in voice and digital M110A from Department of Defense stations.
If you have this capability, check it out, and follow the directions contained in the message (probably to report reception).
This is part of a method for Department of Defense to communicate directly with Amateur Radio stations for broadcast and 2-way information exchange.