I have figured out a 6 points plan to improve relations between BRICS countries

[The3Amigos]

1. Russia gives the eastern half of Heixiazi island back to China.

2. China fights on Russia's side and helps Russia take the remaining part of Donba to compensate for the loss of the eastern half of Heixiazi island.

3. China gives Aksai Chin back to India and drops claim to South Tibet / Arunachal Pradesh.

4. India fights on China's side and helps China take Taiwan to compensate for the loss of Aksai Chin.

5. India and China border dispute is solved.

6. BRICS gains land Donba and Taiwan.