Answer:
The Crimean war was the war that weakened the economy of the Ottoman Empire in the mid 1800s. Positioning them as the Sick Men of Europe.
Step-by-step explanation:
In the first place, the Crimean war was a conflict fought by Russia, The Ottoman Empire, France, Britain, and many others. Why? well, because it is the first hand there were geopolitical reasons to gain power over the region and because the Orthodox and the Catholic churches had differences and citizens claimed rights over the Holy land.
In the second place, Russia and the Ottoman Empire started it and Russia was winning, the trade routes were in danger and The Ottoman Empire was going to lose control and could have been colonized by Russia. The thing was that it wasn't convenient for Britain and France, why? trade routes, money, they had control over the Ottoman empire by economic means. That's why they decided o back The Ottoman empire and sum forces with everyone who wanted a piece of the cake.
In third place, the alliance against Russia won the war, won territory and Russia offered a treaty of peace. But the Ottoman Empire lost ports, lands and was considered "The Sick Men of Europe" while Russia improved all its flaws and got ready for the next era in his history. The real winners were Britain and France who won power over territories, lands, agreements by the means of economy.