WASHINGTON (AP) Two weeks into its war in Ukraine, Russia has achieved less and struggled more than anticipated at the outset of the biggest land conflict in Europe since World War II. But the invading force of more than 150,000 troops retains large and possibly decisive advantages in firepower as they bear down on key cities.

Moscows main objective toppling the Kyiv government and replacing it with Kremlin-friendly leadership remains elusive, and its overall offensive has been slowed by an array of failings, including a lack of coordination between air and ground forces and an inability to fully dominate Ukraines skies.