. . terrorists and governments of similar mind deliberately disperse their military installations among heavily populated civilian areas. This was not much done at the time this accord was written, but is a result of the accord. The civilian population knows what's going on and supports it, they have to expect "collateral damage".
It would not, however, be proper to use something like a nuclear weapon or even a B52 run (total destruction, but confined to a 1/4 x 1/2 mile rectangle) unless the target was extremely important with no other way to handle it.