Send em to Brighton Beach, Brooklyn. 

Old-fashioned WWII leaflet drop.
Submit leaflet to Ukrainians, cross into Europe, get citizenship in Europe or US. I suspect a large number would elect to stay in Europe where they may feel more "connected".
Send 'em all to Delaware.
There are already news sources reporting military age men in Russia are leaving the country to avoid possible service in the military.
There are Russians and Ukrainians crossing the southern US border into the US seeking asylum.
Consider that a certain percentage of them would be Russian agents, Spetsnaz, and saboteurs still loyal to the Kremlin.
We do not need to add to the Fifth Column members that have already infested all branches of our government, including the Pentagon.