Who will win in a war between the USA and a coalition of China and Russia?

Since China had Mao Zedong, Western Powers never won China with or without allies or coalitions. Western powers always beat China before China had Mao, every time. With Mao, China won the Anti-Japanese Occupation war. Won Korean War, Won the proxy war of Vietnam. Won China-India border war. Won Zhenbao Island war. Won China-Vietnam border war and sea war.

Since there was Mao Zedong, the USA won if it was on China’s side; the USA lost if it was on the opposite side of China, regardless China was weak or strong. The USA won the cold war when it sided with China.

I cannot tell about the future, but I can review what happened in history. History gives us a reference. Just like a company interviews a job applicant, it always reads the resume the personal history and uses history to judge the future.