The story takes place in the year of 2011, where a radical leader has executed the president of an unnamed country in the Middle East, and an ultranationalist movement ignites a civil war in Russia.
Alternate take with Anime characters. Basically same scenario, but with anime characters.
It take place on a modern day settings where an CIA operative is forced to collaborate with Yotsuba's liberation army against the Sobu army occupying in Urzikstan in order to contain the stolen gas while the S.A.S (Survey Corps) are infiltrating Miku Nakanos's hideout to track down their leader. Erwin Smith and the S.A.S join forces with a CIA operative and Yotsuba's forces to stop the potential global war.