weapons. if you look at the battle in bakhmut, for instance, some of the firepower unleashed there by the artillery, by the tanks wagner had in its possession, that certainly seemed to be a professional army. and it was now yevgeny prigozhin seemed to be at the height of his power, but it appears as though he's gone one step too far, anderson. >> fred pleitgen, appreciate it. joining me now is russian journalist mikhail swreeger, the author of war and punishment, putin, zuplen skae, and the path of russia's invasion of ukraine. also in january he wrote an interesting piece in "the new york times" suggesting a power struggle between prigozhin and putin was bound to happen. you wrote prigozhin, quote, may be putin's greatest threat to power. he certainly has been over the last 24 hours. why did vladimir putin allow this guy all these months to spot off, attack his generals and the execution of the war? was it because his troops were so important to the war effort? or did vladimir putin like that