Wohin gingen alle türkischen Sprecher von Belostoksky Uyezd? Wurden sie nach dem Zweiten Weltkrieg deportiert?

Polish Tatars were people of Turkic origin, BUT “Turkic” doesn’t mean Turkish. With time, they largely switched to local languages like Polish.

Deportation-wise, Polish Tatars were not specifically targeted, but some were deported by the Soviets during WWII along with other people living in eastern Poland.