https://www.reuters.com/world/china/factbox-who-were-foreign-leaders-chinas-military-parade-2025-09-03/China's military parade invited heads of government and high-ranking government officials from many countries around the world. The presence of Russian President Vladimir Putin and North Korean leader Kim Jong Un was a much more notable in event. But another important point is that no American government official or head of government was invited.
Here, China is sending a strong message against America by excluding two superpowers, Russia and North Korea, as the first row guests.
China and the US have been rivals for a long time, and have had various diplomatic relations deteriorate in the past. As part of their global rivalry, China is trying to form an alliance in Asia. I think that China is trying to form an anti-American unity with various countries in Central Asia, including Russia, North Korea, Iran, Pakistan, etc.
China's military parade featured a variety of modern weapons and equipment, all of which were developed using its own technology. As a result, China wanted to show the world its capabilities, strength, intelligence, and knowledge, and especially its ability to fight against America as a message.