Robert Tsao, a retired billionaire, is pledging one billion Taiwan dollars (£28m) to create a civilian army to help his countrymen and women fight China. The aim is to train up three million civilian ‘warriors’ - a seventh of the population - in three years. Office workers, students, shopkeepers, parents could all learn to pick up a gun; he wants 300,000 sharpshooters. He acknowledges the task is ambitious, but vows it could be done. Born in China but raised in Taiwan, he created the United Microelectronics Corp semiconductor company, making his fortune in an industry Taiwan is now globally known for. As a businessman, he had many dealings in China. An ardent student of history, he has been a high-profile voice in policy debates for decades. He is now among an increasing number of Taiwanese who feel they need to prepare for a possible invasion. See previous article, on military drills.