“Because in 2024, Ukraine is no longer facing Russia. Soldiers from North Korea are standing in front of Ukraine. Let’s be honest. Already in Ukraine, the Iranian ‘Shahedis’ are killing civilians absolutely openly, without any shame,” said Zaluzhny, adding that North Korean and Chinese weapons are flying into Ukraine. Zaluzhny urged Ukraine’s allies to draw the right conclusions. “It is still possible to stop it here, on the territory of Ukraine. But for some reason our partners do not want to understand this. It is obvious that Ukraine already has too many enemies. Ukraine will survive with technology, but it is not clear whether it can win this battle alone,” he said.
Definitely do your own research on this. My understanding is that if any one country does not agree on Article 5 being invoked then there is no collective response. Even if it is invoked each country can choose what they want to do as a response.
The only time it has ever been invoked is after 9/11. Many countries just decided to not send military aid.
Countries can always decide to defend eachother outside of Nato as well.
With the US out of the alliance there is talk of setting up a European nuclear defense system that can’t be disrupted by an election by one of the individual countries.
https://www.brennancenter.org/our-work/research-reports/natos-article-5-collective-defense-obligations-explained