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;
Sanjak of Ankara capital, and after 1852 the province was once more known as the Ankara Eyalet, and after 1867 as the Ankara Vilayet. In 1912, the "sanjak" of Ankara comprised the districts ("kazas") of Ankara proper, Ayaş, Beypazarı, Nallıhan, Mihalıççık, Sivrihisar, Haymana, Bala, Yabanabad and Kalecik. Sanjak of Ankara The Sanjak of Ankara was a second-level province ("sanjak") of the Ottoman Empire. The town of Ankara became part of the Ottoman state in 1361 or perhaps in 1354. It was the first capital ("pasha sanjak") of the Anatolia Eyalet from its formation in the late 14th century until the late 15th century,