It will be very foolish if this shia fanatic decided to go to ukraine considering that russia allowing israel to bomb them constantly.It will be ultimate stupidity for them to help out russia unless of couse you are from syria national army
Iranian backed Shias will be happy to have their people used as cannon fodder to expand russian influence, while the same russia does deals behind their backs to allow Isreal to smoke their generals in syria.
But if they had brains they wouldn't be spreading nothing but sectarian conflict in Muslim lands.