The world's first drone war between nuclear-armed neighbours has erupted in South Asia. On Thursday, India accused Pakistan of launching waves of drones and missiles at three military bases in Indian territory and Indian-administered Kashmir - an allegation Islamabad swiftly denied.

While Pakistan was attempting, and failing, to strike military installations in India using missiles and drones for the second day running, the Indian armed forces launched drones at four sites in the country and destroyed an air defence radar.

With the intensification of India-Pakistan clashes along the border, drones are now the cutting-edge military technology at the frontlines. During Operation Sindoor, India's deployment of high-tech unmanned platforms-from loitering weapons to reconnaissance UAVs-has made deep penetration strikes,