German intelligence chiefs have warned that Russia could test NATO's resolve through limited incursions, rather than full-scale military engagement. The head of Germany's foreign intelligence, Bruno Kahl, stated that Russia might send "little green men" into Estonia to "protect supposedly oppressed Russian minorities," reminiscent of Russia's 2014 annexation of Crimea. Kahl emphasized that Russia doesn't need to deploy tank armies for such actions, but rather aims to test whether the U.S. would uphold its mutual aid obligations under Article 5 of the North Atlantic Treaty. Russia's objective is to foster insecurity, spread fear, conduct espionage, and assess NATO's resilience.
Lieutenant General Alexander Sollfrank, who leads Germany’s joint operations command, echoed these concerns, stating that Russia has the capacity for a "small-scale attack against NATO territory as early as tomorrow." He clarified that these would be "small, quick, regionally limited, nothing big," as Russia remains heavily engaged in Ukraine. Sollfrank noted that Russia possesses enough main battle tanks to execute such a limited attack. He also warned that Russia could potentially mount a larger assault on the 32-member alliance as early as 2029 if its rearmament efforts continue.
These warnings suggest that Russia's tactics would involve "non-linear warfare" or hybrid warfare, including drone incursions and intimidation through nuclear threats, as outlined in their doctrine. The goal is to provoke NATO and gauge its response. Sollfrank believes that the likelihood of a Russian attack depends significantly on NATO's deterrence efforts and three factors: Russia's military strength, track record, and leadership. Russia, however, denies aggressive intentions, with President Vladimir Putin claiming the 2022 invasion of Ukraine was a defense against NATO's expansionist ambitions.
