Fort Bragg cut power for thousands to test ‘real-world reactions’ to a cyber-attack

I think it wise for us to test in real world.  I want to know the answers from this too…

Fort Bragg Army base in eastern North Carolina went into a “blackout” for more than 12 hours as part of cyber attack military exercise. The base sought to see ‘real world reactions’ to a power outage.

Source: Fort Bragg cut power for thousands to test ‘real-world reactions’ to a cyber-attack