I want to know the answer to the following question:
The annexation of what two regions resulted in large groups of Muslim refugees coming into the empire?
All the background I'm provided with is that "For example, the Russian and Austria-Habsburg annexation of the Crimean and Balkan regions respectively saw large influxes of Muslim refugees – 200,000 Crimean Tartars fleeing to Dobruja.". Is that enough to answer the question?