The Russo-Turkish War of 1735-1739 between Russia and the Ottoman Empire was caused by the Ottoman Empire's war with Persia and continuing raids by the Crimean Tatars. The war also represented Russia's continuing struggle for access to the Black Sea. In 1737, Austria joined the war on Russia's side, known in historiography as the Austro-Turkish War of 1737-1739.

Question: How many years was it before Austria joined Russia?
Answer: 2

Question: What year did the Russo-Turkish and Austro-Turkish wars first overlap?
Answer: 1737

Question: How many war occurred in passage..?
Answer: 2

Question: What is know as historiography?
Answer: Russia's side

Question: In what year did the Franco-Prussian War end?
Answer: 1739

Question: How many years after the start of the war did Austria started working with Russia?
Answer: 2

Question: How many years were the Russo-Turkish War and the Austro-Turkish War occurring simultaneously?
Answer: 3

Question: How many years did the Russo-Turkish War last?
Answer: 4

Question: How many years did Austria fight during the war?
Answer: 2

Question: How many years did the Austro-Turkish War last?
Answer: 2

Question: How many years did the Russo-Turkish War last?
Answer: 4

Question: Which two countries did the Turks fight in the Austro-Turkish War?
Answer: Russia