Siege of Germanicia
638 CE.
Shown on the map at 37.583°, 36.933°.
The siege of Germanicia or Marash was led by Muslim forces of the Rashidun Caliphate during their campaigns in Anatolia in 638. The city surrendered without much bloodshed. The expedition is considered significant due to the fact that it marked the end of the military career of the Arab Muslim general Khalid ibn Walid, who was dismissed from the army a few months after his return from the expedition.
Text from the Wikipedia article Siege of Germanicia, licensed CC BY-SA 4.0.