the bombing Attack operation was carried out Action by the vietnam people 's air force ( vpaf ) unk thang squadron , using Using captured Conquering republic of vietnam air force ( unk ) a-37 dragonfly aircraft flown Motion by vpaf pilots and unk defectors led by nguyen thanh trung who had bombed Attack the presidential palace in saigon on 8 april 1975 .

These hereditary titles had been given Giving to prominent Han Chinese defectors who had helped the Manchu conquer China during the transition from Ming to Qing .