BBC News 10 May 2022 - by the Visual Journalism Team
Russian forces are continuing to focus their attacks on the east of the country but resistance from Ukrainian troops is slowing their progress.
Here are the latest developments:
Russia invaded Ukraine on 24 February, but its forces withdrew from around the capital Kyiv and surrounding regions to Belarus and western Russia in early April.
Russia has since refocused its efforts on taking control of the east and south of Ukraine.
Russians regrouping in the east
Russian officials have said its forces are fighting for the "complete liberation" of the Donbas, which broadly refers to Ukraine's eastern regions of Donetsk and Luhansk, where Russian-backed separatists held significant territory before the invasion.
Russian forces appear to have stalled to the south of Izyum and are now regrouping, according to the Institute for the Study of War (ISW), with Ukrainian troops managing to repel recent attempted advances.
Ukrainian defences in the region have been in place since fighting began there in 2014 and the UK Ministry of Defence says Russian forces have failed to build much momentum.
A successful recent counter-offensive by Ukrainian forces around the city of Kharkiv, to the north west of Izyum, has advanced towards the border with Russia, according to the ISW. This will likely force Russia to reinforce its positions in the region at the cost of supporting offensive operations elsewhere.
Russia targets full control of south
Russian forces initially made rapid gains in the south, with their main objective being the creation of a land corridor between Crimea, which it annexed in 2014, and areas held by Russian-backed separatists in Donetsk and Luhansk.
But strong resistance from Ukrainian forces near Mykolaiv in the west and in Mariupol in the east significantly slowed Russian advances.
The port city of Mariupol, which has been encircled since the start of March, is now mostly under the control of Russian forces.
Several hundred Ukrainian troops remain holed up in the Azovstal metal works factory in the south of the city, with Russian forces continuing attempts to take control of the sprawling industrial complex.
To the west, Russia had aimed to take control of Odesa and cut off Ukraine's access to the Black Sea, but its troops have so far been unable to reach the city. The historic port was targeted by missile strikes on Monday night.
There have been a series of recent explosions in Transnistria, a breakaway part of Moldova where Russian troops are already based, which Russian-backed local officials have blamed on Ukraine.
However, Ukraine has claimed these are so-called "false flag" operations - an attempt by Russia to destabilise the region and spread the conflict.
North retaken after Russian retreat
Ukrainian forces retook large areas around Kyiv in early April after Russia abandoned its push towards Kyiv, which had begun in the first days of its invasion.
Successful counterattacks by Ukrainian forces helped retake areas around Kyiv and, as the Russians withdrew, the Ukrainians were able to advance all the way to their northern borders with Belarus and western Russia.
By David Brown, Bella Hurrell, Dominic Bailey, Mike Hills, Lucy Rodgers, Paul Sargeant, Alison Trowsdale, Mark Bryson, Zoe Bartholomew, Sean Willmott, Sana Dionysiou, Joy Roxas, Gerry Fletcher, Jana Tauschinsk, Debie Loizou and Prina Shah.
About these maps
To indicate which parts of Ukraine are under control by Russian troops we are using daily assessments published by the Institute for the Study of War with the American Enterprise Institute's Critical Threats Project.
To show key areas where advances are taking place we are also using daily updates from the UK Ministry of Defence and BBC research.
The situation in Ukraine is fast moving and it is likely there will be times when there have been changes not reflected in the maps.
