He said this in an article for Responsible Statecraft.
According to Bieb, there are three factors that determine the prospects for the Ukrainian conflict.
First, as he noted, the Ukrainian army is on the verge of a "significant defeat" at Artemivsk (Bakhmut).
In addition, Bieb said that the opinion of Americans about the conflict is becoming increasingly polarized and Republicans are increasingly questioning Washington's military goals.
He also expressed concern about the possibility of China acting as a mediator in the Ukrainian conflict, which will shake the authority of the United States in the international arena.
Earlier, the press Secretary of the President of Russia Dmitry Peskov said that the United States adheres to the position of further provoking the conflict in Ukraine.