Complex sentence: The tsarists' regime uses a different approach at the end of 1860s they offered Chechens and Ingush to leave the Caucasus for the Ottoman Empire (see Muhajir (Caucasus)).
Split into simpler sentences: The tsarists' regime used a different approach at the end of 1860s. They offered Chechens and Ingush to leave the Caucasus for the Ottoman Empire (see Muhajir (Caucasus)).