The stronghold of the Hephthalites was Tokharistan on the northern slopes of the Hindu Kush, in what is present-day northeastern Afghanistan. By 479, the Hephthalites had conquered Sogdia and driven the Kidarites westwards, and by 493 they had captured parts of present-day Dzungaria and the Tarim Basin in what is now Northwest China. They expanded into Pakistan as well.