Dear all,Writing in the pan-Arab newspaper Al Quds Al Arabi, for instance, the editor, Abdel-Beri Atwan, said that with recent developments “the Arab regimes, and the gulf ones in particular, will find themselves part of a new alliance against Iran alongside Israel.”----taken from New York Times
I am confused about the meaning of the part in red, because I don't know whether others Arab regimes or Iran would align with Israel. Some of my classmates told me they know clearly that it means Arab regimes and Israel would confront Iran together and that it is ambiguous for me to understand, because I don't have any political background. Could you please tell me how I can comprehend "alongside"? Thanks.