BIBLICAL
Daniel 11:40-45 tells us that after the King of the North (Syria, Iraq, Iran) and the King of the South (Saudi Arabia, Egypt) mount unsuccessful attacks against the anti-Christ, there will be reports of troop movement from the East (China, etc.) and North (Russia) This is the run-up to Armageddon.
https://gracethrufaith.com/end-times-prophecy/the-kings-of-the-east/