Bruce Ashford was my missions professor at Southeastern Seminary. It was about the theology, not methodology—a theology of the glory of God displayed in the narrative of Scripture, with particular emphasis on how God calls a people from all nations to exalt his name in worship throughout all the earth.
I read with interest his missiological survey of The Great Game: The Struggle for Empire in Central Asia, which tells the story of the 19th century struggle between Britain and Russia for control of Central Asia. I had just read the book last year. It's a fascinating enough story if you like to fill in gaps in your understanding of world history. It's even more fascinating if you read it from a missiological perspective. Ashford's survey will help you do that. He writes:
Christians seeking to live and work in a Central Asian context will be wise to take note that Western “Christian” nations have been among the chief culprits in the bloodshed and exploitations of the past century. The phrase “Jesus is Lord” does not conjure up thoughts of a God of love and of life. Rather, for them, it evokes memories of strife and bloodshed. Among the Tatars, for example, who were conquered by Ivan the Terrible, to call a person “baptized” is to call them the one of the strongest curse words in their contemporary vocabulary. It is for this reason, therefore, that believers who wear the name “Christian” will need to work hard, through word and through deed, to fill that word with new meaning.