[You don’t want to get caught flat-footed in a war where nuclear weapons are an option.)]
Precisely. If the Russians or Chinese start lobbing MOAB-sizdd nukes on the battlefield, are we going to up the ante and wipe out hundreds of millions of their people, thereby getting to find out just how good our continental missile defense system is against the other guy’s nuclear triad? Or are we gonna reply with similar MOAB-sized nukes against their battlefield forces? Very important question, and one that arises only if we do have the weapons deployed. Because if we don’t, then it’s a crappy choice between losing on the battlefield or initiating an all-out nuclear attack on the other guy.