Contraofensiva Ucrania.
Ukraine battle expands as Kyiv launches a counteroffensive.

> KRAMATORSK, Ukraine — Ukrainian soldiers, seeking to spread Russian forces thin, launched a counteroffensive on Sunday in Kherson, the key southern city that Moscow considered so securely under its thumb that it had introduced the ruble.
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> Ukraine’s push in Kherson came as its forces were desperately battling to hold off Russia’s efforts to conquer and cut off a strategic strip of Eastern Ukraine that is central to Moscow’s struggling war effort, and it had the effect of expanding the battlefield.
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> The opening of the new front underlined that when it comes to territory in Ukraine, little is for keeps as each side tries to exploit the enemy’s shifting strategic vulnerabilities. That volatility promises to only increase as Ukraine receives more sophisticated long-range artillery, and soon possibly American missiles.
> The announcement of the Ukrainian counteroffensive — “Hold on, Kherson, we’re coming!” the military said Sunday morning on Twitter — signaled what may prove to be a new chapter in a war that has political, economic and humanitarian significance far beyond Ukraine’s borders.
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> Kherson, a port city in Ukraine’s agricultural heartland, was the first major city to fall as Russian forces swept north out of Crimea more than three months ago. After seizing it, Moscow used the city as a staging ground for operations across southern Ukraine.
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> But in recent weeks, Russian forces — stretched thin and taking heavy losses as they gain ground in the eastern Donbas region — have concentrated their efforts in the south on fortifying defensive positions. Satellite images have shown Russians scrambling to build fortifications in Kherson, where the shoots of an insurgency surfaced this month.
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> It was not clear if they were prepared for the Ukrainian counterattack.
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> The Ukrainian military headquarters said in a statement that its forces had broken through a Russian line of defense and pushed the Russians into less favorable terrain near the villages of Andriyivka, Lozove and Belihorka. The counteroffensive also sought to threaten Russia’s supply routes on bridges over the Dnipro River.
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> Ukraine had been telegraphing the counteroffensive for days, though it had said such a maneuver would require the Western artillery systems promised by the United States and other allies. It was unclear on Sunday what artillery Ukraine was using in its counteroffensive.
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> In a war that is increasingly becoming an arms race, powerful American-made howitzers reached Ukrainian forces this month, and Ukrainian troops recently received Harpoon anti-ship cruise missiles from Denmark. Ukraine’s defense minister, Oleksiy Reznikov, said they would be used to try to break Russia’s Black Sea blockade and to protect the port city of Odesa.