AFP and Reuters report:

Thousands of Ukrainian troops are taking part in an incursion aiming to destabilise Russia by showing up the country’s weaknesses, a top official from Ukraine has said as the assault entered its sixth day.

“We are on the offensive. The aim is to stretch the positions of the enemy, to inflict maximum losses and to destabilise the situation in Russia as they are unable to protect their own border,” the security official said on condition of anonymity.

Russia’s army had said about 1,000 Ukrainian troops were deployed in the cross-border incursion that began on Tuesday and appeared to catch the Kremlin off guard, allowing Ukraine’s forces to penetrate Russian defensive lines.

Asked whether the 1,000 figure was correct, the official said: “It is a lot more … Thousands.”

After days of official silence, Ukraine’s president, Volodymyr Zelenskiy, acknowledged the offensive for the first time on Saturday, saying that Kyiv was “pushing the war into the aggressor’s territory”. [Continue reading…]

Phillips Payson O’Brien writes:

Earlier this week, reports began filtering in that Ukrainian forces had entered Russia’s Kursk province, in what many analysts assumed was a small cross-border raid—of a sort that Ukraine has attempted a few times since Russia’s full-scale invasion in 2022. But as the hours and days ticked by and Ukrainian forces moved deeper and deeper into Russian territory, the seriousness of the military operation became obvious. The Ukrainians spread out as they went along, and had soon seized more ground from Russia in a few days than Russia has taken during an offensive in the Kharkiv region that began in the spring. As part of the new incursion, Ukraine has been deploying advanced armored vehicles, including German-supplied Marder infantry fighting vehicles—a striking development, given the unease among Kyiv’s allies about being seen as escalating hostilities between the West and Russia.

The initial success of what’s looking more and more like a full offensive shows what the Ukrainians can achieve if they have both the tools and the latitude to fight Russia. Ukraine’s most generous benefactors, especially the United States and Germany, have previously expressed their strong opposition to the use of their arms on Russian soil. In May, the U.S. made an exception, allowing Ukraine to use American equipment to hit back on Russian-based targets involved in the attack on Kharkiv. Still, the broader prohibition limited Kyiv’s military options.

Now Washington and Berlin may be softening their positions more than they’re explicitly saying. A Pentagon spokesperson said Thursday that U.S. officials still “don’t support long-range attacks into Russia” but also that the Kursk incursion is “consistent with our policy.” Perhaps President Joe Biden, freed of electoral considerations, can focus more on how best to help the Ukrainians now—and limit the damage that Donald Trump could do to their cause if he wins in November. The White House’s notably bland statement on the Ukrainian offensive on Wednesday was hardly the sign of an administration in panic.

Clearly, Kyiv has been biding its time. Its planning for the current offensive took place quietly—and amid many pessimistic assessments of its military prospects by outside analysts and claims that it should save its forces for combat in the Donbas. The weakness of Russian defense is in some sense shocking—but was also completely predictable because of the way Ukraine has been asked to fight. Its allies’ apprehension about taking the war to Russian territory has provided Vladimir Putin with a major asymmetrical advantage. The Russians have been able to send almost all of their troops into Ukraine itself, safe in the knowledge that Ukraine’s own partners were securing Russian territory from attack.

Moscow simply took the U.S. and Germany too much at their word. Russian forces seem to have kept only substandard troops at the border, and the fortifications in the Kursk area have so far presented few problems for the Ukrainians. The lack of Russian internal defenses first became obvious last summer, when the former Putin confidant Yevgeny Prigozhin mutinied and directed an armed force to march toward Moscow, and apparently only small improvements have been made since. “Between countries at war, there is no border, there is only the front,” the Ukrainian analyst Mykola Bielieskov told me. “The Russians have forgotten that—the Ukrainians did not.” [Continue reading…]