Russia-Ukraine war at a glance: what we know on day 477 of the invasion

Ukraine is taking significant casualties and making slow progress towards the Russian main line of defence, western officials have admitted in one of the west's first assessments of the Ukrainian counteroffensive launched on 4 June. "This is incredibly difficult," the official said. "They are going against a well-prepared line that the Russians have had months to prepare." Ukraine reported incremental advances in its counteroffensive against Russian forces on Wednesday, in what the Ukrainian deputy defence minister described as "extremely fierce" fighting. In the past day, Ukrainian troops had advanced 200-500 metres in various areas near the largely devastated eastern city…