>>38944
D5?

DEFENSE SUPPORT OF CIVIL AUTHORITIES1-5.DSCA addresses the consequences of man-made or natural disasters and incidents beyond the capabilities of civilian authorities. U.S. Army forces do not conduct stability tasks within the United States and its territories; under U.S. law, the Federal Government and state governments are responsible for those tasks. Instead, Army forces conduct DSCA, when requested, providing their expertise and capabilities to lead agency authorities.

https://fas.org/irp/doddir/army/atp3-57-60.pdf

any militaryfags around.
what else maybe in the military could D5 be?

Division 5
Protocol D1-6