What was the name of the area in the highlands of central Anatolia ruled by Deiotarus?
Galatia Ancient Galatia ( ; Greek: Γαλατία , Turkish: "Galatlar" ) was an area in the highlands of central Anatolia (Ankara, Çorum, Yozgat Province) in modern Turkey. Galatia was named for the immigrant Gauls from Thrace (cf. Tylis), who settled here and became its ruling caste in the 3rd century BC, following the Gallic invasion of the Balkans in 279 BC. It has been called the "Gallia" of the East, Roman writers calling its inhabitants "Galli" ("Gauls" or "Celts").
Mushki The Mushki were an Iron Age people of Anatolia who appear in sources from Assyria but not from the Hittites. Several authors have connected them with the Moschoi (Μόσχοι) of Greek sources and the Georgian tribe of the Meskhi. Josephus Flavius identified the "Moschoi" with the Biblical Meshech. Two different groups are called "Muški" in Assyrian sources (Diakonoff 1984:115), one from the 12th to the 9th centuries near the confluence of the Arsanias and the Euphrates ("Eastern Mushki") and the other from the 8th to the 7th centuries in Cappadocia and Cilicia ("Western Mushki"). Assyrian sources identify the Western Mushki with the Phrygians, but Greek sources clearly distinguish between the Phrygians and the Moschoi.