Ukrainian President Volodymyr Zelensky said Monday that the Ukrainian assault on Russia’s Kursk Oblast shows that Moscow’s red lines and threats of retaliation are a bluff.

Zelensky made the comments while criticizing the US and its NATO allies for not allowing Ukraine to use Western-provided weapons to launch long-range strikes inside Russian territory.

“We are witnessing a significant ideological shift – the naive, illusory concept of so-called red lines regarding Russia, which dominated the assessment of the war by some partners, has crumbled apart these days,” he said.

The Ukrainian leader claimed that if Ukraine had been allowed to fire NATO weapons deep inside Russia, it wouldn’t have had to launch the offensive in Kursk. He also claimed that long-range strikes would stop Russia’s gains in eastern Ukraine, which have become more rapid amid the fighting in Kursk.

“You must realize, both here and in the capitals where you work, that Ukraine is separated from stopping the advance of the Russian army at the front by only one decision, which we expect from our partners. And this is a decision on long-range capabilities,” he said.