[bobcostas55]

>They freed and armed the Greeks who collaborated with the Nazi regime

This is not really the case. Two "groups" were to be left armed (and transformed into a national army): the 3rd Greek Mountain Brigade and the Sacred Band. Both groups were formed by the Greek government in exile, and were under the control of the Greek government. Both groups fought in battles against the Nazis. There is no question of collaboration among them.

As for the cops I'm sure there were collaborationists in their ranks, and obviously firing on the crowd was both wrong and a massive mistake. But this is no justification for anything the communists did.