The most likely use of nuclear weapons by Russia is not against Ukrainian cities but against the Ukrainian armed forces, to annihilate them and win the war. Tactical nuclear weapons are defined by their employment on the battlefield against enemy military formations, as well as by relatively low explosive yield, sometimes very low. This makes it possible to use them with greater discrimination and pinpoint targeting, potentially minimizing the destruction and killing of non-combatants. Tactical nuclear weapons of the 'neutron bomb' variety also minimizes contamination and the danger of fallout spreading into Russian territory. Precisely for these reasons, their use, and the crossing of the nuclear threshold, become more tempting.