Russian mercenary leader Yevgeny Prigozhin has backed down, since taking his troops out of Ukraine and marching on Moscow on Friday - with a deal being made with the Kremlin, brokered by Belarussian leader Alexander Lukashenko.
However U.S. officials see the events as cracks appearing in Russian President Vladmimr Putin's leadership.
Caroline Malone reports from Washington.
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OUT: Caroline Malone Washington
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