Baktra

Bactria, or Bactriana, was an ancient Iranian civilization in Central Asia based in the area south of the Oxus River and north of the mountains of the Hindu Kush, an area within the north of modern Afghanistan. Bactria was strategically located south of Sogdia and the western part of the Pamir Mountains. The extensive mountain ranges acted as protective "walls" on three sides, with the Pamir on the north and the Hindu Kush on south forming a junction with the Karakoram range towards the east.

Called "beautiful Bactria, crowned with flags" by the Avesta, the region is considered, in the Zoroastrian faith, to be one of the "sixteen perfect Iranian lands" that the supreme deity, Ahura Mazda, had created. It was once a small and independent kingdom struggling to exist against nomadic Turanians.

Source: Wikipedia