8-10 years, since they have us, the South Koreans, China, Taiwan and Europe helping them. Maybe even quicker. East Asians are generally very smart, industrious, teamwork-oriented and inventive.
21 posted on 05/15/2018 8:18:36 AM PDT by 2ndDivisionVet
(You cannot invade the mainland US. There'd be a rifle behind every blade of grass.)