Ukraine faces ongoing challenges in countering Russian aggression.

Ukrainian officials say the main counteroffensive against Russia is yet to come, with offensive operations continuing in several areas. Russia has accused mercenary boss Yevgeny Prigozhin of mutiny after he vowed to punish military brass whom he accused of killing 2,000 of his fighters. European Union officials are backing the idea that proceeds from more than $230 billion in frozen Russian assets should finance Ukraine's war effort and reconstruction. Ukrainian President Volodymyr Zelenskyy has ordered personnel changes after an inquest revealed that a quarter of the bomb shelters in the country, a third of them in Kyiv, were unfit for use. Zelenskyy also believes Russia might be preparing for an attack on the Zaporizhzhia nuclear power plant.