New Delhi: India and the US achieved a key breakthrough on coproduction of fighter jet engines, with GE Aerospace and Hindustan Aeronautics Ltd (HAL) reaching an agreement on technical matters. This is likely to be followed by the signing of a final contract later this year, in what would be a major boost to the Indian Air Force's attempts to reverse its depleting fighter squadron strength and grow the fleet, critical for a two-front war with China and Pakistan.The US aerospace company also announced the signing of a contract with IAF for setting up a depot facility for F404 engines...