American citizens will once again be taking up residence in Tehran, the first to do so since the Islamic revolution and hostage crisis in 1979 and 1980. Eighty Boeing jets and an initial batch of seventeen Airbus planes out of a potential total of one hundred and eighteen will be going to Iran. This sale will have the important effect of ending an era of absolute isolation between countries. Boeing will have to open an administrative office in Tehran, and technicians (Americans) will have to move there to train their Iranian counterparts in the care and maintenance of the planes. Buying planes from the United States and opening a Boeing office may seem insignificant, but it is representing a huge shift in relations between the two countries.