Used to serve in the Marine Corps. Specializing in free combat, explosive elimination and fast shooting. Security work of the Secretary General of the United Nations; The delegation of the Ministry of Public Security went abroad to guard the work; United Nations material escort; Theater convoy escort; Battlefield camp security; Defending the presidential election scene in war-torn countries; Security Manager of the construction site of a Chinese funded industrial park in Pakistan; Site security consultant of a Chinese funded offshore drilling project in Nigeria.