Why wouldn't he?
It would be idiotic not to ask for as much military assistance as he possibly could.
This is always done in any war where it can be done.
Probably the best example is Churchill in WWII.
Stalin did the same.
I don’t give one sh*t what Stalin did.
If such an argument was even remotely valid, then Ukraine/EU/UK/NATO/US/UN would have no problems whatsoever with the Referenda going on given the US and NATO split apart Serbia to create Kosovo with a referendum and force of arms.
Ukrainian is incessantly demanding and begging for more tanks, planes, artillery assets, military hardware, munitions, billions in money, etc., etc. cause their own military hardware is getting utterly wrecked!