Complex sentence: This was the last Sich and was banned in 1775 by the Government of Catherine the Great at the end of the war between the Russian and Ottoman Empires for possession of the steppes near the Black Sea and Crimea.
Split into simpler sentences: This was the last Sich which was banned in 1775 by the Government of Catherine the Great. It was the end of the war between the Russian and Ottoman Empires, for possession of the steppes near the Black Sea and Crimea.