2:49
What will be Russia's next move?
Paul Adams -BBC Diplomatic correspondent
It's probably too early to say whether Moscow has changed plans or reduced its ambitions in Ukraine - but there's definitely a shift in emphasis.
The end of what Russia has called the "first stage" of its attack likely means a more concerted effort to push beyond the "line of contact" that separates Ukrainian government-held territory in the east from the Russian-backed separatist "people's republics" of Donetsk and Luhansk.
The pace of Russia's advance in other areas of Ukraine remains glacial. It's probably way too early to conclude that Russia has given up on capturing Kyiv, but Western officials say that Russia continues to experience setback after setback.
A renewed push now could see Russian troops pushing out into so-far unconquered areas of Donetsk and Luhansk, possibly aiming to link up with forces moving south from Kharkiv and Izyum.
And if Russia can succeed in finally pacifying the port of Mariupol, on the Sea of Azov, then other forces could move north and complete the encirclement of Ukraine's frontline Joint Forces Operation troops.
Some of these objectives still seem out of reach. Mariupol's defenders are putting up a ferocious fight, preventing Russia from fully achieving another of its pre-war ambitions - a land bridge from the Crimean Peninsula to the Donbas.
But if Moscow has concluded that it makes more sense to concentrate, for the time being, on achieving one objective at a time, it's likely to concentrate its firepower, especially from the air.
If the coming days do see a shift of focus to the Donbas, that doesn't yet mean that Moscow has abandoned its wider ambitions.
"We don't see a re-evaluation of the invasion as a whole," a senior US defence official said.
What will be Russia's next move?
Paul Adams -BBC Diplomatic correspondent
It's probably too early to say whether Moscow has changed plans or reduced its ambitions in Ukraine - but there's definitely a shift in emphasis.
The end of what Russia has called the "first stage" of its attack likely means a more concerted effort to push beyond the "line of contact" that separates Ukrainian government-held territory in the east from the Russian-backed separatist "people's republics" of Donetsk and Luhansk.
The pace of Russia's advance in other areas of Ukraine remains glacial. It's probably way too early to conclude that Russia has given up on capturing Kyiv, but Western officials say that Russia continues to experience setback after setback.
A renewed push now could see Russian troops pushing out into so-far unconquered areas of Donetsk and Luhansk, possibly aiming to link up with forces moving south from Kharkiv and Izyum.
And if Russia can succeed in finally pacifying the port of Mariupol, on the Sea of Azov, then other forces could move north and complete the encirclement of Ukraine's frontline Joint Forces Operation troops.
Some of these objectives still seem out of reach. Mariupol's defenders are putting up a ferocious fight, preventing Russia from fully achieving another of its pre-war ambitions - a land bridge from the Crimean Peninsula to the Donbas.
But if Moscow has concluded that it makes more sense to concentrate, for the time being, on achieving one objective at a time, it's likely to concentrate its firepower, especially from the air.
If the coming days do see a shift of focus to the Donbas, that doesn't yet mean that Moscow has abandoned its wider ambitions.
"We don't see a re-evaluation of the invasion as a whole," a senior US defence official said.
