“The UN Security Council is expected to vote this week on imposing an arms embargo against South Sudan, a US proposal which follows a power-sharing agreement between warring leaders. The United States is South Sudan’s biggest aid provider, and was a major backer of its 2011 independence from Sudan.”

http://www.theeastafrican.co.ke/news/ea/UN-to-take-up-South-Sudan-arms-embargo-/4552908-4657112-kdtw63z/index.html