RIGA — The three Baltic states are confronting what defense analysts describe as an existential security crisis after US Secretary of State Marco Rubio said America will "have to reexamine" its NATO relationship, while President Donald Trump stated he is "considering pulling out" of what he called a "paper tiger" alliance.
For Estonia, Latvia, and Lithuania—NATO members positioned on Russia's border who have consistently exceeded the alliance's 2% defense spending target—the developments represent their worst security nightmare since regaining independence from the Soviet Union.
In the Baltics, as on NATO's eastern flank, geography and history create an acute awareness of security realities.
The three nations joined NATO in 2004 specifically for Article 5 protection—the collective defense guarantee that an attack on one member constitutes an attack on all. Without that American security umbrella, the combined population of 6 million faces a nuclear-armed Russia that has never fully reconciled itself to Baltic independence.
"This isn't abstract geopolitics for us," said Krišjānis Kariņš, former Latvian prime minister, in response to the American statements. "Article 5 is the reason NATO exists. Without it, we're discussing a different organization entirely."
The timing could hardly be worse. Estonia has been grappling with a sustained drone incursion crisis, with emergency services advising citizens to keep phone volumes on at night to receive warnings. Russian vessels have sought shelter in Norwegian fjords more than 230 times since 2022. 's Education Ministry recently set a 2% quota for university students to fight in .

