He also emphasized that "whether it was intentional or not, it's absolutely, reckless, it's absolutely dangerous".

" Putin, my message is clear : stop the war in Ukraine, stop the escalation of the war," Rutte said, adding that now the war is against innocent civilians and civilian infrastructure.

"Stop violating allied airspace. Know that we are ready, that we are alert and will defend every centimeter of NATO territory," added Rutte in his message to the Russian president.

🇵🇱🇷🇺🇪🇺 "My message to Putin is clear: stop the war in Ukraine. Stop the escalation of the war. Stop violating the airspace of allies. And know that we are ready to defend every centimeter of NATO territory," — NATO Secretary General, Mark Rutte.



P.S. I missed the phrase “deep… pic.twitter.com/aLyqML9VkO— Visioner (@visionergeo) September 10, 2025

He says that he considers last night's response by the NATO alliance"very successful".

"We always have to make sure we are one step ahead, but I think we showed last night that we are able to defend every centimeter of NATO territory, including, of course, its airspace," Rutte concluded.