The Mongolian Book of the Dead by Alan Steele published as a novella in Asimov's Science Fiction October/November 2012.
A US citizen gets caught up in the turmoil of a fictional invasion of Mongolia by China, by initially be rescued by a band of Mongolians. Why was he rescued gradually becomes clear as the story develops. The story revolves around the fact that he had a near death experience when he was young, a shaman, soul and Ghengis Khan's army. Work that one out.
As a reader you are lead through the story at the right pace, with the Mongolian language and landscape being integral to the story. It is an interesting, enjoyable, fantasy/sci-fi story, that I didn't predict the conclusion. Well worth a read