“History does not repeat itself, but it does rhyme.” The latest round of Russian-American embassy staff hits—Russia cut hundreds of U.S. Embassy employees in an escalatory response to U.S. expulsion of 35 Russian diplomats last December—recall the big Soviet-American embassy staff expulsions of 1986. Few recall the details of these Reagan-era fights. But many remember that the 1980s ended badly for the Soviet Union.

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