Military (or something in the whole war apparatus) was running networked Windows 2000 in some mission critical role and was worried about being compromised by a cyber counter-attack once they started offensive action.
I'd like to hear the story of how the military deployed these fixes across the board in only a few days to ensure they had complete protection. Back in 2003, even auto-updates tended not to get installed/applied on large systems where there were complex admin rules about how updates should happen.
I doubt it required an across-the-board deployment. Rather, specific systems like the one alluded to in the post (the reason that the Suits appeared in Redmond) would need to be hardened in advance of the start of offensive military activities when the secrets housed in the system needed to stay secret.