In its biggest victory yet, Ukraine retook its vital port city, Kherson. The Guardian’s Luke Harding calls Russia’s retreat a turning point in the war — but a long, cold winter awaits.

This episode was produced by Victoria Chamberlin and Haleema Shah, edited by Matt Collette, fact-checked by Laura Bullard, engineered by Efim Shapiro, and hosted by Noel King.

Transcript at vox.com/todayexplained

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