Which battle is also known as the Battle of the Trench, named after the defensive strategy employed by the Muslims?

Explanation

– The Battle of Khandaq, also known as the Battle of the Trench, took place in 5 AH and is named after the defensive trench dug around Madinah on the suggestion of Salman al-Farsi (RA) to prevent the advancing coalition forces from breaching the city.
– This innovative strategy was largely unfamiliar to Arabian warfare at the time and proved highly effective.
– For exams, remember that this battle is also referred to as the Battle of the Confederates (Al-Ahzab), reflecting the alliance of multiple tribes against Madinah.