Russian and Belarusian forces began final preparations in late July for Zapad-2021, Russia’s capstone annual military exercise and an important indicator of Russian military capabilities. The Russian military holds an annual capstone military exercise every September, rotating between Russia’s four military districts – East, Center, South, and West. Russia’s 2021 capstone exercise, “Zapad,” will occur in the Western Military District and Belarus from Sept. 10-16. Russia and Belarus are framing Zapad-2021 as a joint exercise. Russia’s annual capstone exercises routinely involve foreign military forces but have not been framed as joint exercises prior to 2021. The units Russia and Belarus deploy in Zapad-2021 and the types of actions they practice will provide essential insight on evolving Russian and Belarusian military capabilities. ISW will monitor and provide updates on Russian and Belarusian movements before, during, and after the official period of Zapad-2021 from Sept. 10-16.

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