Answer:
The Russo-Turkish War.
Step-by-step explanation:
It was a conflict between Eastern Orthodox Coalition composed by the Russian Empire, Bulgaria, Romania, Serbia and Montenegro against the Ottoman Empire. It was fought through the Caucasus and the Balkans.
It was a response of the Russian Empire to regain the territories lost in the Crimean War along with a new sense of nationalism in the Balkanic area. The coalition won the war and as a result of it the Ottoman Empire lost many territories, some in the hands of the Russian and other territories proclaimed their independence from them.
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