The battle of Khandaq was known as such because the
Answer Details
The battle of Khandaq was known as such because the Muslims dug a trench as a war strategy to protect Medina from the attack of the Quraysh tribe. The trench was dug around Medina to prevent the enemies from entering the city, and this defense strategy proved successful in repelling the attack of the Quraysh tribe. Therefore, the battle is also known as the Battle of the Trench or the Battle of Ahzab.