According to emerging insights from U.S. intelligence, Russian President Vladimir Putin may contemplate an offensive against a NATO ally in the foreseeable future. This potential move is seen as an attempt to dismantle the alliance’s structure formed after World War II and to challenge the core of its collective defense principle, Article 5.
In previous analyses, U.S. intelligence believed Putin would refrain from targeting a NATO member while engaged in the Ukraine conflict. However, with Ukraine gaining ground, indications are emerging from the U.S. and Europe that the Russian leader is looking to test NATO’s resolve. This shift in strategy was highlighted in a report by The Wall Street Journal.
Recent incidents adding to these concerns include a drone striking an apartment building in Romania and cruise missiles landing in Polish territory, both of which are NATO countries.
On Friday, August 7, 2026, Russian President Vladimir Putin convenes a Security Council meeting in Moscow. (Photo Credit: Alexander Kazakov/Pool Sputnik Kremlin via AP)
NATO’s Article 5 is foundational, declaring that an attack against one ally is considered an assault on all member nations.
The assessment said it would likely be a limited attack that could range anywhere from a cyberattack to a small-scale land incursion and would likely be focused on the Baltics or Poland.
The attack could happen any time between this fall and 2029, the assessment said.
“The question mark is how the United States would respond in that case,” Heather Conley, senior fellow with the American Enterprise Institute, told the Journal. “It has always been a goal [of Russia’s] to challenge the credibility of NATO and to separate the United States from its allies.”
The assessment also comes amid claims the United States’ munitions stockpile has been depleted by arms sent to support Ukraine and due to the war in Iran.
Chief Pentagon spokesman Sean Parnell, however, called those claims false.
Police and forensic investigators examine the location of impact after a Russian drone struck an apartment building in Galati, Romania, May 29, 2026. (AFP via Getty Images)
“We have everything required to strike at the time and place of the president’s choosing,” Parnell told the Journal. “Across multiple combatant commands, we have already executed successful operations while maintaining a deep, ready arsenal to defend our people and our interests. Any adversary who confuses media noise with American weakness will discover the truth the hard way.”
A land incursion was deemed the least likely because it would trigger Article 5, but it’s unclear what the response would be to something like a cyberattack.
The Polish army secures a large crater, the probable impact site of a projectile linked to overnight strikes in Ukraine, in Tarnawa-Kolonia, eastern Poland, July 30, 2026. (TVN Poland/AFPTV/AFP via Getty Images)
“This has always been NATO’s challenge to respond to a sub-Article 5 attack, and it’s been very true that to this point, NATO allies have preferred not to escalate,” Conley told the Journal.
News Media has reached out to NATO for comment.
Col. Martin O’Donnell, a NATO spokesman, told the Journal, “We are always thinking through and preparing for any number of scenarios. NATO is watching, and we are ready to deter and defend as necessary, which we continue to demonstrate.”