'In the absence of ammunition they're doomed to perish senselessly,' Yevgeny Prigozhin saysYevgeny Prigozhin, leader of Russia's Wagner Group mercenary force, said in a sudden and dramatic announcement on Friday that his forces would pull out of the Ukrainian city of Bakhmut that they have been trying in vain to capture since last summer. Prigozhin said they would withdraw on May 10 — ending their involvement in the longest and bloodiest battle of the war — because of heavy losses and inadequate ammunition supplies. He asked defence chiefs to insert regular army troops in their place. "I declare on behalf...