Muslim–Quraysh War in the context of "Battle of the Trench"

The Battle of the Trench (Arabic: غزوة الخندق, romanized: Ghazwat al-Khandaq), also known as the Battle of Khandaq (Arabic: معركة الخندق, romanized: Ma’rakah al-Khandaq) and the Battle of the Confederates (Arabic: غزوة الاحزاب, romanized: Ghazwat al-Ahzab), was part of the conflict between the Muslims and the Quraysh. The Quraysh advanced towards the Muslims, who defended themselves in Medina by digging a trench around their settlement at the suggestion of Salman the Persian. The battle took place in 627 and lasted around two weeks, resulting in five to six casualties reported by the Muslim, and three casualties amongst the Quraysh.

The Quraysh tried to launch an attack, but soon realized they had limited military capability, being primarily merchants. This prompted them to negotiate with the Bedouins in order to get them to join the campaign. The Banu Nadir, whom Muhammad had previously expelled from Medina, were also part of this effort and offered the Bedouins half of their crops in Khaybar to persuade them to participate. They reported to have gathered a confederate force of between 7,500 and 10,000 men, including Banu Ghatafan, Banu Sulaym, and Banu Asad.