Alfred Thayer Mahan (“muh-HAN”) hypothesized that the middle of this region was a “debatable and debated ground” in a book titled for the “Problem” of this region.” A large part of this region is the title “Geographical Pivot of History” in another work. Two of the three parts of Nicholas John Spykman’s (“SPEEK-man’s”) Rimland lie in this region, which Halford Mackinder theorized contains most of the strategically important “Heartland.” (*) Jared Diamond argued that too little geographic balkanization in this region made its great powers unchallenged despite (-5[1])the correct “axis of orientation.” The Sunda Shelf is part of this region, which lies west of the Wallace line. (-5[2])This region also contains the “Roof of the World” near the site of the Great Game. For 10 points, name this continent separated by the (10[1])Urals from Europe. ■END■ (10[2])