Indian, Chines and Russian triangle of friendship is great opportunity for STANS (Afghanistan, Hindustan - Arabistan and other Stans) but it can be disastrous if Pakistan remain the bullyboy of the Stans as it is today.
Being hijacked by its foreign supported Army, there is no easy solution to bring Pakistan from bullying to cooperation in the region, but to divide it in three parts, a Pakistan comprises of Punjab and Sindh provinces, a Baluchistan for Baluches and a Pashtunkhwa for Pashtuns.
It is equally important for the Stans that Punjab and Sindh stay together in a Pakistan, because of the share values of mindset, attitude, culture, economy and many other issues and geopolitically guarding the border between giant India and other smaller nations, I am sure, it will be backed by other nations.
The separation of Baluchistan and Pakhtunkwha is important, because from the creation of Pakistan till today, Baluch and Pashtuns having less shared values could not catchup with the mindset of Punjabies and Sindhies, which made Pakistan to fight within itself, making life of Pashtuns and Baluchs miserable. Therefore, Pakistan is forced to keep the century old inhuman colonial rules such a FCR (Frontier Crime rule) as law, at the expense of million innocent lives in Pashtuns and Baluch lands and deterring the progress of other Stans as whole, just to keep Baluch and Pashtuns part of Pakistan. This made Pakistan and other nations hostile to each other in the region.
It is very important that India, China and Russia do not repeat the mistake of other empires, do not try to impose their values on other nations, keep their plans and progress balanced within their own territories, by avoiding expansionist ideologies in the region and cooperate with neighbors to be prosperous and equal partners for a peaceful region.
Please remember that we are living in a natural region and ideological formation such a Pakistan, Soviet Union, Taliban and others brought problems and failures to the region in the past and we have to refrain from that in future to have peaceful region. In our region formation that are based on history, culture, the mindset and shared values will be successful and cooperative as nations.