We should never trust USA, what they did in 1971 if their support arrived in time there was no seperation of Pakistan, after 1998 sanctions etc they almost left us defencless even israelies came to indian to jointly attack us, but thanks God cuz of nucelear power india back out, so we should in future try to develop and upgrade jf17 and other new planes rather than any us war machine and in next decade f16 will be obsolete, first they make too much profit and make us cry also, so pls no more f16