The BM-21 Is Obsolete and Prone to Breakdown, but Ukraine Wants More
The BM-21 rocket launcher—like at least two-thirds of Ukraine’s arsenal—is from the Soviet era. WSJ explains how it works and why Ukraine is trying to get more, despite it being outdated and imprecise. Photo illustration: Jacob Nelson
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Equipped
WSJ examines military innovation and tactics emerging around the world, breaking down the tech behind the weaponry and its potential impact.