D5

?

D5 stands for "deceive, degrade, deny, disrupt, destroy."'

deceive

degrade

deny

disrupt

destroy

Ever thought the term C4ISR was acronym overkill? Well, here’s another doozy. The Air Force’s fiscal year 2014 budget request includes $11.3 million to develop tools to do, wait for it, "D5."

D5 stands for "deceive, degrade, deny, disrupt, destroy." No, it’s not something an awful child does on the playground; it’s what the service wants its cyberweapons to do enemy networks.

https://foreignpolicy.com/2013/04/12/the-five-deadly-ds-of-the-air-forces-cyber-arsenal/