http://www.ad2000.org/1040broc.htmdefinition of the 10-40 window
The core of the unreached people of our world live in a rectangular-shaped window! Often called "The Resistant Belt", the window extends from West Africa to East Asia, from ten degrees north to forty degrees north of the equator. This specific region, which has increasingly become known as The 10/40 Window, encompasses the majority of the world's Muslims, Hindus, and Buddhists -- billions of spiritually impoverished souls.
As we approach the end of this millennium, it is imperative that out evangelistic efforts be focused among the people who inhabit The 10/40 Window. If we are serious in our commitment to provide a valid opportunity for every person to experience the truth and saving power of Jesus Christ, we cannot ignore the compelling realities within this region.
The 10/40 Window confronts us with several important considerations: first, the historical and biblical significance; second, the least evangelized countries; third, the dominance of three religious blocs; fourth, the preponderance of the poor; fifth, the unreached ethnolinguistic people groups; sixth, the least evangelized megacities; and seventh, the strongholds of Satan within The 10/40 Window.
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('the strongholds of Satan')
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George Otis, Jr., has concluded that two powerful demonic forces, with great biblical significance, stand at the epicenter of the unreached world -- the prince of Persia (Iran) and the spirit of Babylon (Iraq) -- and both much be penetrated with the gospel before the Great Commission can be completed. Otis observes that this will occur in the region of the Garden of Eden, where the command to "subdue the earth" was originally given.
It is evident that the forces of Satan have great power and will resist all attempts to be overcome. If we are to storm the enemy's territory, we must put on the full armor of God and fight with the weapons of spiritual warfare described in Ephesians 6. To depend on anything less is utter foolishness.
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NOTE THE INFO THAT MAY BE DRIVING CONCERN WITH IRAQ AND IRAN
two powerful demonic forces, with great biblical significance, stand at the epicenter of the unreached world -- the prince of Persia (Iran) and the spirit of Babylon (Iraq)