EU has around 1 billion people, ruzzia jas maybe 100 million, EU has 10 times the population. The only issue is that if Ukraine falls, putin will use force to make sure his army now includes Ukrainians conquered in Ukraine, just like he did with the residents of Donbass region. He will then take on the rest of Europe and given what ruzzians and Ukrainians have learned in thia war, the Europeans will find themselves in a really tough place Will the Europeans even fight at all? Polish, Lytovian, Finnish, they will fight, what about the rest? Given the experience and the size of the militaries, Europe stands no chance. Its best deffense is to help Ukraine with everything, instead European countries are busy with their internal problems.