Pakistan will not jeapordize it`s relations with the U.S, bottom line. Just because Pakistan and India have a treaty doesn`t mean anything, they do not trust each other and Pakistan needs a big brother around to help quell things. China is only interested in Pakistan because of weapons that are sold to them, remember that China also sells weapons to Iran and used to sell to Iraq also. Pakistan doesn`t give a shit about Irans future, never has and never will. Being armed to take on a potential war with India is the focus and will remain the focus.