In what world does Russia not provide material support to China, if not outright military support, in the event of a conflict between the United States and China. Any supposedly chinese-focused strategy that does not address the certainty that it will call on Russia, Iran, and other regionally aligned powers to disrupt the ability of US forces to focus on the pacific is unserious. Crippling Russia militarily and economically now is prioritizing a future conflict with China in one of the best ways we can without directly initiating that conflict.