The head of the Wagner mercenary force has said that 20,000 of its fighters have been killed in the battle for the Ukrainian city of Bakhmut, and warned that Russia could face another revolution if its leadership does not improve its handling of the war.
Yevgeny Prigozhin said 20% of the 50,000 convicts Wagner had recruited, and a similar number of its regular troops, had been killed over several months in the fight for Bakhmut.
