Fighting rages in eastern Ukrainepublished at 08:11 Greenwich Mean Time 24 February 2023
David Brown
BBC News Visual Journalism Team
One year since the invasion, heavy fighting is concentrated on a series front line flashpoints in the east of Ukraine.
The most deadly confrontations are around the town of Bakhmut, according to Ukraine’s military.
Casualties there have been so high that commanders on both sides have called Bakhmut the “meat grinder”.
Russian troops and allied Wagner Group mercenaries have been attempting to encircle the town for weeks.
Many analysts a say the battle for Bakhmut is part of a Russian spring offensive that is already underway.
Michael Kofman of the US-based Center for Naval Analysis says the offensive started about three weeks ago. So far, he says, Russian gains have been “underwhelming”.
He adds that while Russian forces may struggle to make a decisive push through Ukrainian lines, Russian positions have been heavily reinforced with few if any weak points for Ukrainian troops to exploit.
Russian troops have also been trying to smash through Ukraine lines near Kreminna, according to the Institute for the Study of War.
To the south, around Vuhledar, Russian forces have shifted from artillery and mechanised attacks to infantry assaults, according to Kyrylo Budanov, a spokesperson for Ukraine’s military intelligence.
He says the change in tactics may be a sign that artillery shells and armoured vehicles are in short supply.
Reports also suggest that Ukrainian lines around Bilorivka and Avdiivka are under intense pressure, but holding for now.