A U.S. Marine, right, assigned to Special Purpose Marine Air-Ground Task Force Crisis Response, guides U.S. citizens down a flight line in Juba, South Sudan, during an evacuation of personnel from the U.S. Embassy in Juba Jan. 3, 2014. About a dozen U.S. Service members with the task force evacuated more than 20 people from the embassy in coordination with Combined Joint Task Force-Horn of Africas East Africa Response Force. The U.S. State Department requested the assistance of U.S. military forces in evacuating personnel from the embassy in Juba, South Sudan, to Nairobi, Kenya, amid political and ethnic violence in South Sudan.