Indian Air Force chief Air Chief Marshal R.K.S. Bhadauria on Thursday said the evolving threat matrix to India has become more complex with adversaries collusively supported by non-state actors. Addressing the men in blue during the 88th Indian Air Force Day at Hindon, 20 km east of the national Capital, he said: “The evolving threat matrix in our region is becoming complex, ranging from aspirational adversaries with huge investments in military arsenal, to those collusively supported by non-state actors, apart from growing sub-conventional threats emanating from terrorism and cyber space.”