China is back to flexing its muscles close to the Indian border. The People's Liberation Army has conducted a major "live fire" exercise, testing its multi-role J-10 fighters armed with laser-guided and other bombs, in the high-altitude Qinghai-Tibet Plateau. Chinese official media on Thursday described the exercise as "the first operation of its kind" on the 3,500-metre high plateau, which saw the fighter jets being fuelled and loaded with bombs for ground attack missions during sub-zero temperatures.