Austria entered the war against Turkey in July 1737 but was defeated a number of times. In August, Russia, Austria and Turkey began negotiations in Nemirov, which would turn out to be fruitless. There were no significant military operations in 1738. The Russian army had to leave Ochakov and Kinburn due to a plague outbreak. In 1739, the Münnich army crossed the Dnieper, defeated the Ottoman Empire at Stavuchany, and occupied the fortress of Khotin and Iaşi. However, Austria was defeated by the Ottoman Empire once again and signed a separate peace treaty on August 21. This, coupled with the imminent threat of Swedish invasion, forced Russia to sign the Treaty of Belgrade with Turkey on September 18, ending the war.