ລມຕ ຕ່າງປະເທດ John Kerry ຢ້ຽມຢາມ ອາຟຣິກາ

South Sudan's President Salva Kiir, right, chats with U.S. Secretary of State John Kerry as he greets Kerry at the president's office in Juba, South Sudan, May 2, 2014. 

U.S. Sec. of State John Kerry, right, meets with Olusegun Obasanjo, chairman of the African Union's South Sudan Commission of Inquiry, in Addis Ababa, Ethiopia, May 2, 2014. 

U.S. Sec. of State John Kerry, left, talks with the crew of a U.S. Air Force C-17 military airplane prior to departure from Addis Ababa, Ethiopia, enroute to Juba, South Sudan, May 2, 2014.

Alina Fodorova of Ukraine competes in the long jump event of the women's heptathlon during the 15th IAAF World Championships at the National Stadium in Beijing, China.

South Sudanese Foreign Minister Barnaba Marial Benjamin, right, welcomes U.S. Sec. of State John Kerry upon his arrival at Juba International Airport, South Sudan, May 2, 2014.