Will Ukraine's attack inside Russia pay off?

Two and half years after Russia first invaded, Ukraine has launched what might be its boldest counterattack yet: a push into the Kursk region. It's the first military incursion across Russian borders since the Second World War, drawing Russian troops away from key battle zones in eastern Ukraine.

Tim Mak, a Kyiv-based journalist who publishes the newsletter The Counteroffensive, explains why Ukraine is betting big on such a risky strategy, and whether it could change the course of this protracted war.

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