Russia's private Wagner militia, which is leading the assault on Bakhmut in Ukraine and has been active in Africa, could soon cease to exist, founder Yevgeny Prigozhin said in video remarks to a blogger that were released on Friday. It was not immediately clear when Prigozhin had spoken and how serious he was being. Earlier this week he withdrew comments about the frontline he said had been a joke. Prigozhin has complained repeatedly about how Russia is conducting the war in Ukraine. He often says the regular armed forces are not giving his men the ammunition they need and sometimes...