By STEPHEN BRYEN
New Delhi has been alarmed by China’s deployment of J-20 aircraft near India’s sensitive northeastern border. Last January the Chinese Air Force – officially known as the People’s Liberation Army Air Force or PLAAF – conducted extensive military exercises in Tibet with the Chengdu J-20 and other fighters, primarily the Chengdu J-10C and Shenyang J-11. The Chinese planes were using improved Tibetan airfields that China has made all-weather capable. There are now 14 important airfields in Tibet supporting PLAAF operations.