Until his move to the PLA Rocket Force, Wang had been deputy commander of the navy since 2020.
State media did not say where the PLA Rocket Force's previous chief, Li Yuchao, was reassigned or state his whereabouts.
Xi has repeatedly urged the military to deepen war and combat planning to increase the chances of victory in actual combat to safeguard China's sovereignty and territory.
China says it is committed to a defensive nuclear strategy, and pledges to no first use of nuclear weapons.
It says it will also not use or threaten to use nuclear weapons against non-nuclear weapon states or nuclear weapon free zones.
Persons:
Jason Lee, Xi Jinping, Wang Houbin, Xu Xisheng, Wang, Xu, Li Yuchao, Xi, Ryan Woo, Alex Richardson
Organizations:
Military, People's, REUTERS, People's Liberation Army, PLA Rocket Force, Navy, Southern Theatre Command, PLA, Thomson
Locations:
People's Republic of China, Beijing, China, BEIJING