fuck you settler cuntWho is "we". Because I sure bet you aren't the one going to do the fighting, which is the bottom line.
It is really the bottom line here. Are you actually ready to fight over Ukraine as in fight fight and send actual soldiers that may die to do so?
Putin does what he does because he simply very reasonably assumes that no EU country or US will actually do any sort of fighting over Ukraine. Sanctions-shmanctions, Russia seen worse and because of the whole energy crisis and being key and in many East EU states the only realistic gas supplier - Putin knows he even won't really get balls to the wall sanctions, despite chest thumping by various PMs/presidents/etc.
There is no "the world" here, because Ukraine is not important enough for "the world" to actually act on.