Deputy Representative to the Philippines Lee Ting-sheng (李廷盛), a retired air force lieutenant general, is to return to Taiwan and assume the role of chief executive officer at the Global Unmanned Aerial Vehicle Academy (GUAVA), a source said yesterday.To consolidate resources and maximize operationa. Add TT as Preferred Source Deputy Representative to the Philippines Lee Ting-sheng (李廷盛), a retired air force lieutenant general, is to return to Taiwan and assume the role.