Robert Kaplan says that it’s no accident that Iran was the ancient world’s first superpower:
There was a certain geographic logic to it. Iran is the greater Middle East’s universal joint, tightly fused to all of the outer cores. Its border roughly traces and conforms to the natural contours of the landscape — plateaus to the west, mountains and seas to the north and south, and desert expanse in the east toward Afghanistan. For this reason, Iran has a far more venerable record as a nation-state and urbane civilization than most places in the Arab world and all the places in the Fertile Crescent. Unlike the geographically illogical countries of that adjacent region, there is nothing artificial about Iran. Not surprisingly, Iran is now being wooed by both India and China, whose navies will come to dominate the Eurasian sea lanes in the 21st century.
Kaplan sees Iran as another shatter zone within the greater Middle East, but with a difference:
The instability Iran will cause will not come from its implosion, but from a strong, internally coherent Iranian nation that explodes outward from a natural geographic platform to shatter the region around it. The security provided to Iran by its own natural boundaries has historically been a potent force for power projection. The present is no different. Through its uncompromising ideology and nimble intelligence services, Iran runs an unconventional, postmodern empire of substate entities in the greater Middle East: Hamas in Palestine, Hezbollah in Lebanon, and the Sadrist movement in southern Iraq. If the geographic logic of Iranian expansion sounds eerily similar to that of Russian expansion in Mackinder’s original telling, it is.The geography of Iran today, like that of Russia before, determines the most realistic strategy to securing this shatter zone: containment. As with Russia, the goal of containing Iran must be to impose pressure on the contradictions of the unpopular, theocratic regime in Tehran, such that it eventually changes from within. The battle for Eurasia has many, increasingly interlocking fronts. But the primary one is for Iranian hearts and minds, just as it was for those of Eastern Europeans during the Cold War. Iran is home to one of the Muslim world’s most sophisticated populations, and traveling there, one encounters less anti-Americanism and anti-Semitism than in Egypt. This is where the battle of ideas meets the dictates of geography.