US intelligence sources told Bloomberg that corruption in China's military, especially the Rocket Force, was so severe that it led Xi Jinping to purge over a dozen senior PLA commanders. Examples of corruption cited included missiles that had been filled with water instead of fuel and missile silos fitted with lids that prevented effective launching. The problems undermined Xi's goals of modernizing the military and confidence in the Rocket Force's capabilities, which oversees China's nuclear weapons and has been a focus of Xi's efforts, especially regarding Taiwan.