Ankara headquarters of the Turkish Aerospace Industries, MKE, ASELSAN, Havelsan, Roketsan, FNSS, Nurol Makina, and numerous other firms are located. Exports to foreign countries from these defence and aerospace firms have steadily increased in the past decades. The IDEF in Ankara is one of the largest international expositions of the global arms industry. A number of the global automotive companies also have production facilities in Ankara, such as the German bus and truck manufacturer MAN SE. Ankara hosts the OSTIM Industrial Zone, Turkey's largest industrial park. A large percentage of the complicated employment in Ankara is provided by the state institutions;
Ankara Roman world near Trier. The city was subsequently passed under the control of the Roman Empire. In 25 BC, Emperor Augustus raised it to the status of a "polis" and made it the capital city of the Roman province of Galatia. Ankara is famous for the "Monumentum Ancyranum" ("Temple of Augustus and Rome") which contains the official record of the "Acts of Augustus", known as the "Res Gestae Divi Augusti", an inscription cut in marble on the walls of this temple. The ruins of Ancyra still furnish today valuable bas-reliefs, inscriptions and other architectural fragments. Two other Galatian tribal centers,