@oatmeal @israel @palestine you might want to take a look into Israel's 1983 (at the height of the Cold War) refurbishments
"in particular, in 1983, the Israelis built "a secure underground operating room and tunnel network" beneath Building 2 of the hospital"
[https://en.wikipedia.org/wiki/Al-Shifa_Hospital#Architecture_and_Expansion]
(This was contemporaneous with the British arctitecture industry designing teaching hospitals with nuclear bomb shelters beneath them in Iraq.)