Russian worries more about "China North Expansion" and may attack China later, since China got relationship with US 50 years ago and stabbed USSR from behind, and recently 30 years China got big money from US and got some high-tech weapons from US and Ukraine and have a more power military which is a HUGE thread to Russian. Russian will invade China and destroy Chinese Government and military years later when he's recovered from this war. Hey, China, are you ready for this?
A NATO-like military alliance in APAC is the best answer to China's aggression and threats in the region. The core of it will be AUKUS, and will welcome new members such as Japan, India, Taiwan, Vietnam, the Philippines, and S Korea.