The result: Militaries in Europe that once feared Russia say they are not as intimidated by Russian ground forces as they were in the past.

That Russia has so quickly abandoned surgical strikes, instead killing civilians trying to flee, could damage Putin’s chances of winning a long-term war in Ukraine. The brutal tactics may eventually overwhelm Ukraine’s defenses, but they will almost certainly fuel a bloody insurgency that could bog down Russia for years, military analysts say. Most of all, Russia has exposed to its European neighbors and American rivals gaps in its military strategy that can be exploited in future battles.

“Today what I have seen is that even this huge army or military is not so huge,” said Lt. Gen. Martin Herem, Estonia’s chief of defense, during a news conference at an air base in northern Estonia with Gen. Mark A. Milley, the chairman of the U.S. Joint Chiefs of Staff.

Herem’s colleague and the air force chief, Brig. Gen. Rauno Sirk, in an interview with a local newspaper, was even more blunt in his assessment of the Russian air force. “If you look at what’s on the other side, you’ll see that there isn’t really an opponent anymore,” he said.