RAMSTEIN AIR BASE, Germany — Dozens of uniformed officials looked to the head table Thursday morning at the dimly lit officer’s club here. They were staring at Lloyd Austin, America’s secretary of defense, the man who brought them all together. But as the day began, the focus was less on Austin than what it means for him to depart.

Even as Russia seems to have the upper hand in its invasion of Ukraine, the Kremlin faces a growing number of challenges that will complicate any effort to lock in its gains, the outgoing Pentagon chief said.

Ahead of President-elect Donald Trump’s return to office, Ukraine’s future course is shrouded in uncertainty as Kyiv loses ground to Russia’s far larger military.

Outgoing Pentagon chief Lloyd Austin has said that even though Russia appears to have the upper hand in its invasion of Ukraine, the Kremlin is facing a growing number of challenges that will complicate any attempts to consolidate its gains.

Russia does not have all the advantages in the war against Ukraine as it seems. The Kremlin is facing an increasing number of challenges that will make it difficult to record its successes, Pentagon chief Lloyd Austin says.