Constantine V's First Eastern Campaign
Kahramanmaraş, TurkeyIn 746, profiting from the unstable conditions in the Umayyad Caliphate, which was falling apart under Marwan II, Byzantine emperor Constantine V conducts successful campaigns in northern Syria and Armenia, captured Germanikeia, and also thoroughly undermined Bulgarian strength. Coupled with military defeats on other fronts of the Caliphate and internal instability, Umayyad expansion came to an end.