this is a pretty famous bridge in my country:
γοργοπόταμος bridge. it was sabotaged in 1942 by guerillas in collaboration with english commandoes in order to cut/delay the nazis supply line to their forces in south greece and (maybe) north africa.. it was a heavily guarded bridge so it took a big fight to get close.
its one of the rare occasions the communist guerillas (and the vast majority of the guerillas were communist-politically left leaning) callaborated with some right-wing guerillas (mostly ex-army officers) in order to get what you see in this picture done.
after some time they began fight each other and the final outcome (after the nazis left) was a fully wadged civil war that lasted til 1949.
in the small picture: in retaliation the italians, who were responsible for guarding the bridge, shot 14 prisoners, 7 of them in the place were the sabotage took place.