Gotta love these Ukrainians, when the weather warms up and the leaves come out with lot's of cover, the well armed, trained and equipped reservists all over the regions near the Russians will be partisans. Summer will be IED season for any Russians left in Ukraine and unrelenting guerilla attacks in their rear, while the huge Ukrainian army hammers them on their front with advanced weapons. Reservist will hold most of the border areas where the Russians were driven back to the borders or close, from the exhausted remaining Russians. The war will be over when the Ukrainians say it will be over, not Vlad while he is occupying any of Ukraine including Crimea. In a month, if they drive the Russians back and defeat them enough, most Ukrainians would settle for nothing less than total victory before peace. It might even be political suicide for Zelenskiy to settle for less after a month of victories.
I'd take his threat about Guerilla warfare seriously when summer arrives and there is tree cover and more ground cover. If the Russians are fighting then as they are now and still inside Ukraine, they will need to wire in their artillery in and ring them with infantry, but that won't save them from the many drone attacks using many different kinds of drones. By summer there will be a traffic jam of drones over their artillery and tanks at night!
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"In fact, it is an attempt to create North and South Korea in Ukraine," Kyrylo Budanov, the head of Ukrainian military intelligence, said in a statement, referring to the division of Korea after the Second World War.
He predicted Ukraine's army would repel Russian forces.
"In addition, the season of a total Ukrainian guerrilla safari will soon begin. Then there will be one relevant scenario left for the Russians, how to survive," he said.
Ukraine's foreign ministry spokesperson also dismissed talk of any referendum in Eastern Ukraine.
"All fake referendums in the temporarily occupied territories are null and void and will have no legal validity," Oleg Nikolenko told Reuters.