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mian...Relax....If any one even think of by passing Pakistan and getting an upperhand in Afganistan, that means that nation really does not understand the situation in Afganistan.....The bottomline is that Pakistan is the one and only one nation that can change the direction how Afganistan should be, till the point Afganistan becomes successful and peaceful for 50 years to become self sustained nation...Till that point...Pakistan is the only nation that can play its cards...And after Pakistan, if really anyone can play a spoiler is RUSSIA and Iran combination....Apart from that rest of the nation are just 12th players...They need either Pakistan or Russia/Iran combo to have a say in Afganistan....
I feel that China's initiative is not against Pakistan...Rather China is trying to be alligned with the nation who have invested in Afganistan and planning to statergize to secure its intrests....You know ....If Pakistan want and play its cards properly, then Pakistan can negotiate with Taliban and allow China,Russia,India and Iran to do bussiness and in return demand the suitable demand which is benefitial to people of Pakistan....
So my suggestion is be smart and convert your problem to your oppertunity....World power need to do bussiness and Pakistan need money to develop...So just bargain the security guarantee to those trading nation with required money and enjoy the fruit of your geographical location..