Center for Public Integrity has an article explaining how a war involving tactical nuclear weapons could play out. The problem, beyond the obvious horrible human and environmental toll they would take, is that they would likely be the link in escalation from conventional war to civilization-annihilating total thermonuclear war. Please no.

Had such an invasion ever come, the commanders in the field, given authorization to use nuclear weapons to avert defeat, would retreat after deployment. (Soviet plans for war were to specifically attack tactical nuclear sites.) The war would then either end in hours with an exchange of ICBMs, or with a ceasefire negotiated to prevent armageddon.

Defense intellectuals describe the steps between peace and thermonuclear oblivion through an “escalation ladder,” with the leadership of both countries at war taking actions that invite the other country to either escalate, by increasing the stakes and tensions, or de-escalate, by backing away from further conflict. Tactical nuclear weapons are the rung separating conventional battle from a nuclear war.

Soviet leaders developed their nuclear weapons and doctrine as a response to U.S. nuclear war planning, and awareness of U.S. nuclear deployments to Europe. Both the U.S. and USSR assumed that once tactical nuclear weapons were used, it was more likely that thermonuclear exchange, not deescalation, would follow.

Center for Public Integrity

So the strategy was to out-crazy the other side. We rolled the dice on that risky strategy and won, but roll the dice enough times and everyone on both sides will lose.

The best thing that could possibly come out of this horrible Ukraine war, once the dust settles, would be renewed arms control negotiations. I am not too hopeful for that because the world seems to be in a very cynical place right now.