Estonia’s top diplomat: Russia testing NATO resolve amid Trump uncertainty

A NATO member has officially invoked Article 4 of the alliance’s founding treaty after a significant airspace breach for the first time since Russia’s full-scale invasion of Ukraine. Recurring Russian provocations are more than just isolated incidents, according to Estonian Foreign Minister Margus Tsahkna, who tells Talk to Al Jazeera. They also serve as a test for NATO’s credibility. Tsahkna warns that Europe’s security consensus is deteriorating and that hesitation could be a threat as US President Donald Trump raises the issue of collective defense.