Not sure there would be 10s of millions, let's agree on several million. The reality is that the wealthier parts of the EU do need to enhance their labour force and Ukrainians coming in are going to be more skilled than those from sub-Saharan Africa. Remittances from folks working overseas and sending money. home can add up, as these figures from the World Bank show. I suspect most of the money going back to Tajikistan (33.4% of GDP) and the Kyrghiz Republic (32.7%) are earned in Russia. Interesting to see how that shakes out.If UKR joined the EU, does the latter in fact want 10Ms of economic migrants.