My advice to Israelis is not to trust the Ukrainian newcomers, no matter how friendly they are... Many years ago I was living somewhere and had a Ukrainian try and befriend me... I remembered old JTF shows where their nation was rightly criticized for their naziism - and this was 20 years ago (JTF is consistent). I gave him the cold shoulder, and never regretted it.
Of course, there are exceptions -- that means to say, the 1% of the olim who are Jewish...