Since Zelenskyy’s visit, Vučić threatened to physically redirect the Iber River that runs from Serbia to Kosovo in retaliation for Kosovo demolishing Serb-owned houses along the reservoir’s shore. Doing so would move that would drain the reservoir supplying much of Kosovo’s water and crucial cooling capacity to its largest power plant. Kosovo was an Albanian-majority southern province of Serbia for most of the 20th century. Kosovo’s Foreign Minister Glauk Konjufca said he took note of Zelenskyy’s views “with regret” and that such rhetoric echoes “Russia’s attempts to invoke Kosova as a precedent.” As for why Ukraine’s leader would wade into the intractable Balkan issue at all, it likely comes down to weaponry.