Yevgeny Prigozhin used a false pretext to lead his Wagner Group forces in an armed insurrection against the Russian state, according to a senior U.S. official. Prigozhin had been plotting ways to reverse his fortunes in the face of waning power and came up with a plan to claim his forces had been bombed, which he would then use to justify actions against Russian Defense Minister Sergei Shoigu and Russian defense leaders, the senior official said. The precipitating factor for Prigozhin’s military march was the directive that his forces be increasingly incorporated into the Russian military, the official said. Prigozhin...