the us does - they reckon in their arrogance that they could win it.
not sure he wants to nuke ukraine - the prevailing winds are unfavourable for that but i would assume that putin realises that if he did launch then he has one shot and he would need to be the first the main target being the us.
destroy their satellites and launch against mainland us at the same time. they have already demonstrated that they have hypersonic missiles and can destroy pinpointed satellites both of which the us lags in. blind the gps system and the us is stuffed. meanwhile the world is splitting in two and there will soon be two internets and two financial systems.
