[montag813]

Can't we just drop a tactical nuke on any such volcano to take it out before it erupts?

[jpsb]

Maybe but, that would be a head sell to the million of folks living near a volcano that might not erupt for thousands of years. Doing so when and eruption was imminent would, practically speaking, do no god since the presure has already build up.

[DannyTN]

Can't we just drop a tactical nuke on any such volcano to take it out before it erupts?

That might work to prevent a buildup of explosive gas, but once you open it, the lava will flow. I'm not sure whether there would be a net reduction in gasses and ash released or not. The nuke might just add to the mess. But it's an idea worth pursuing.