Yevgeny Prigozhin, known as "Putin's chef", has withdrawn his Wagner mercenary forces from the battle for Bakhmut in Ukraine due to a lack of military support. This follows a US official's comments that ammunition shortages were a pressing concern for Moscow. Prigozhin posted an expletive-laden rant on social media before announcing the withdrawal, raising questions about Russia's ability to sustain offensive operations in Ukraine this year.