manpower? The idea of fighting Russia to the last Ukrainian doesn't seem right.
Discussion
This is barely something that is the decision of defending forces if like this or not.
Defenders at most can decide how hard it will be to kill them. But if they gonna be killed or not is the offenders decision when it is within their powers. But it is clear, that the united west has the means to empower the Ukraine to defend their lives and their freedom. The question is only if we are willing to help.
Or they could negotiate a ceasefire and not die at all. But I don't want my country to do everything in it's power to ensure that doesn't happen, which seems like what the US and Europe have been doing, at least up till Trump.