India has reportedly signed a deal to buy Russian missiles that target support aircraft as its arch-rival Pakistan and China continue to integrate their aerial weapons profiles.Russia has cleared the export of around 300 R-37M ultra-long-range air-to-air missiles in a US$1.2 billion deal, according to media reports.Malaysia-based news platform Defence Security Asia said deliveries of the missiles could begin within 12 to 18 months. India is also developing its own Astra Mk 2 and Mk 3 missiles,...