Casus belli shi ne hare-haren da Tatar na Crimean suka kai a Cossack Hetmanate ( Ukrain ) a karshen shekara ta 1735 da yakin Crimean khan a Caucasus. Yakin kuma ya wakilci ci gaba da gwagwarmayar Rasha don shiga tekun Black Sea.A cikin Yuli 1737, Ostiriya ta shiga yaki da Daular Ottoman , amma an yi nasara da ita sau da yawa, da sauransu a yakin Banja Luka a ranar 4 ga Agusta 1737, Yaƙin Grocka a 18, 21-22 Yuli 1739, sannan ta yi rashin nasara a Belgrade. bayan harin da Ottoman ya yi daga ranar 18 ga Yuli zuwa Satumba 1739. Tare da barazanar mamaye kasar Sweden, da kawancen Ottoman da Prussia, Poland da Sweden, ya tilastawa Rasha sanya hannu kan yarjejeniyar Niš da Turkiyya a ranar 29 ga Satumba, wanda ya kawo karshen yakin.Yarjejeniyar zaman lafiya ta ba Azov ga Rasha da kuma karfafa ikon Rasha a kan Zaporizhia.Ga Ostiriya, yakin ya nuna rashin nasara mai ban mamaki.Sojojin Rasha sun fi samun nasara a filin wasa, amma sun yi asarar dubun dubatar cututtuka.Ba za a iya ƙididdige alkaluman asarar da daular Usmaniyya da suka yi ba.