Ukraine finally began its long-awaited counteroffensive on June 4th, two days before D-Day, the anniversary of the liberation of Europe from the Nazis. Much is at stake - but barely after Ukraine began calculated assaults along Russian lines, someone blew up the Kakhovka Dam. A torrent of floodwater has been unleashed on tens of thousands of homes in both Russian and Ukrainian controlled areas, and both sides are laying blame on each other. If sticky Ukrainian mud was once an issue and a challenge for heavily armored tanks, rising floods, and burst riverbanks are now out of the question. One Decision sits down with CNN’s Nic Robertson, Ukrainian-based editor and founder of The Counteroffensive: A war correspondent's open notebook, Tim Mak, reporting live from Ukraine, and Breaking Defense’s Lee Ferran to discuss Ukraine’s offensive, how the floods might impact Kyiv’s strategy, and what to look out for in the coming weeks ahead of a critical NATO summit in Lithuania.

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