I've been intrigued by info I've read about the Israelites. The Jews are the descendants of the Tribe of Judah (for the most part), but there were 11 other tribes (really, 12 other tribes). Most of these tribes made up the nation of Israel, the northern kingdom, that was opposed to Judah, the southern kingdom, after the death of King Solomon. This northern kingdom left the worship of Yaweh, God of their forefathers, and thus eventually were exiled to Assyria in the 700's B.C., and they never returned to the Holy Land. This area to which they were exiled in Assyria, around present day Iran and Iraq, became the Parthian Empire, and these exiles became fully assimilated citizens of it. Later, the Sassanid Persians overthrew the Parthian Empire in 224 A.D., and many of the Parthians were exiled from there. The Sassanids came from the east; the Roman Empire, Parthia's arch-enemy lay to the west; and vast deserts lay to the south. Thus, the majority of exiles moved north through the Caucasus Mountains (noted similarity to the Caucasian race) and into Europe. Note that also around this time, the Roman histories note the influx to their empire of "barbarians" from their north and east, the Goths, who eventually assimilated into the Roman Empire and peopled post-Roman Europe.
The historical summary noted is sweeping and generalized in nature, and there were certainly exceptions, but there seems to be good indication that large segments of people of Israelite descent finally settled in Europe! This is not to say that all of the Goths who migrated into Europe were pure Israelites, nor that all people of Europe since that time are of pure Israelite descent. But it is to say that there is and probably has been a good portion of Israelite "stock" (or genes, if you will) in the European population for the past two millennia.