Complex sentence: The geopolitical reach of the Zand Dynasty was limited, compared to its preceding dynasties, and many of the Iranian territories in the Caucasus gained "de facto" independence, and were locally ruled through various Caucasian khanates.
Split into simpler sentences: The geopolitical reach of the Zand Dynasty was limited, compared to its preceding dynasties. Many of the Iranian territories in the Caucasus gained "de facto" independence and were locally ruled through various Caucasian khanates.