Commander of the task force Li Pengcheng (2nd L front) receives greetings at the accompany of Chinese Ambassador to Luanda Gao Kexiang (2nd R) at the Luanda port, Angola, June 5, 2014. The 16th escort task force of the Chinese navy arrived in Luanda port, Angola on Thursday for a three-day friendly visit, the first of its kind to the African country. (Xinhua/Wang Bingfei)

Commander of the task force Li Pengcheng (L) gives a gift to a local kid at the Luanda port, Angola, June 5, 2014. The 16th escort task force of the Chinese navy arrived in Luanda port, Angola on Thursday for a three-day friendly visit, the first of its kind to the African country. (Xinhua/Wang Bingfei)

Chinese Ambassador to Luanda Gao Kexiang (2nd R) reviews an honor guard at the accompany of Commander of the task force Li Pengcheng (1st R) aboard missile frigate "Yancheng" at the Luanda port, Angola, June 5, 2014. The 16th escort task force of the Chinese navy arrived in Luanda port, Angola on Thursday for a three-day friendly visit, the first of its kind to the African country. (Xinhua/Wang Bingfei)

Employees of Chinese companies welcome the Chinese navy fleet at the Luanda port, Angola, June 5, 2014. The 16th escort task force of the Chinese navy arrived in Luanda port, Angola on Thursday for a three-day friendly visit, the first of its kind to the African country. (Xinhua/Wang Bingfei)