Yeah this is the cold hard truth. Even a nuclear alliance cant even be considered a long term solution. A nation needs nukes if it wants to prevent invasion, period. And the darkest fact of this is that invariably, at some point in the future, someones going to go too far in testing the boundaries of what they can get away with, with a nuclear armed state, and a nuke will be used. The slippery slope that event will send the world spiraling down could get unimaginably ugly incomprehensibly quickly.