I want to know the answer to the following question:
Millions of Muslims left the empire and migrated to what places?
All the background I'm provided with is that "As the Ottoman Empire gradually shrank in size, some 7–9 million Turkish-Muslims from its former territories in the Caucasus, Crimea, Balkans, and the Mediterranean islands migrated to Anatolia and Eastern Thrace.". Is that enough to answer the question?