Brazen strikes deep inside Russia complicate support from U.S., allies for Ukraine

Ukraine‘s apparent drone strikes on military bases deep inside Russian territory have exposed serious vulnerabilities in the Kremlin’s defenses and could be the first indication that Kyiv is now willing and able to take the fight to enemy soil.

But those attacks are creating a major headache for the U.S. and its allies.

The Biden administration over the past several days has scrambled to distance itself from the strikes on Russian military bases and a strategically vital airport, stressing that the U.S. had no involvement with the operations nor did it encourage...