Which attack was that? Couldn't pinpoint by searching. Anyway, instead of hypothetical dwelling, time machines are not yet functional so the solutions need to be in the now and the future.
There's also a ratio of non-nazi civilians which are on the razing path of the bigger fascist country. Europe doesn't seem to have alternative avenues than to attempt to block it at all costs.
How west we talking about? Europe has an existential self-interest, USA has a capitalist military industry profit self-interest. Even going further to the west, China's involvement serves self-interest.
Europe had a view in the 90s–00s that trade can be a vehicle for enforcing peace. That plus capitalist greed let Russia invade Georgia and Crimea before that view changed overnight too late. Similarly countries turn a blind eye on what China is doing
Which attack was that? Couldn't pinpoint by searching. Anyway, instead of hypothetical dwelling, time machines are not yet functional so the solutions need to be in the now and the future.