Building blast resistant is a common practices for Refinery control rooms. The same methodologies can be employed for data centers as well.

1 blast can be expensively guarded againt. However designing anything above ground for sustained barges is practically/commercially prohibitive. Underground is only option.

PS: Civil Engineer. Designed few of those Gas explosion resistant control rooms.

Wouldn't it me much more effective and efficient to have a mechanism to simply not pick leaders who choose war?