Without knowing the deep clade, R1a-M417 and R1b-M269 could have come from almost anywhere: straight from the Steppe, from the Balkans, from Central Asia, from Iran...
Fortunately we have other clues from mtDNA from Tell Megiddo.
- T2b7: was found in Bell Beaker Hungary and England, and in Bronze Age Poland and Bulgaria. Nowadays it is present in found in Finland, Sweden, the Netherlands, France, Switzerland and Italy.
- U2e1b (2 samples): the parent clade U2e1 was U2e1 found in Mesolithic Sweden, Estonia and Latvia, in Neolithic Ukraine, in Bell Beaker Czechia, in the Corded Ware and Unetice cultures, and in EBA Alsace. U2e1b was also present in Early Bronze Age England.
All these are clearly European maternal lineages, and all three were found among the R1b Bell Beakers and in Bronze Age Central and Western Europe. But none were found among Steppe populations or among Indo-Iranians. So it looks like there was a migration of Indo-Europeans from Europe itself to Israel during the Bronze Age.
Nevertheless it looks like it was not a direct migration from Europe as they are not purely European autosomally. They had previously mixed with a population carrying Y-haplogroup J1a2b as the above mtDNA samples have this Y-DNA. The R1b-M269 guy had mtDNA J2a2a2, which is also found in Italy and Turkey today. So my best guess, considering the period, is that those foreigners in Israel were Proto-Armenians who had originally come from the Balkans (R1a + R1b) and mixed with the J1a, J2a and E1b1b population of the South Caucasus, before launching an invasion of the Levant until Tell Megiddo.