One of the world’s most heavily fortified borders stretches between Iran and Pakistan. The Iran-Pakistan Barrier, currently under construction by the Iranian government, features a three-foot thick (.91 meters), ten-foot high (3.05 meter) concrete wall extending across 700 kilometers of forbidding desert terrain. The actual wall, however, is merely one part of an elaborate system of barriers. Exploration via Google Earth reveals several parallel structures running along much of the border, which evidently consist of linked embankments and ditches. Fortress-like structures are also visible in several areas, as are extensive road and track networks. As the walls, berms, dry moats, and other fortifications are all built on the Iranian side of the border, Pakistan has voiced no objections to the project. Tracing the barrier on Google Earth, however, shows several places in which it seemingly crosses the divide between the two countries. Either Iran has encroached on Pakistani territory or—as is vastly more likely—Google Earth does not accurately depict the actual boundary between the two states.