Ridda Wars Conquest of Sasanian Persia Conquest of Byzantine Syria Campaigns in Africa Campaigns in Armenia and Anatolia Khuzestan Central Persia Caucasus Pars Khorasan Other geographies The battle of Zumail (Arabic: معركة الزميل) was fought in 633 CE in Mesopotamia.

Under cover of night the Arab Muslims attacked the Christian-Arab forces, loyal to the Sasanian Empire, from three different sides.

The Persians decided to throw the Muslims back into the desert and regain the territories and the prestige which the Empire had lost.

Bahman decided not to commit this army to battle until its strength had been augmented by the large forces of Christian Arabs who remained loyal to the Empire.

Apart from the defeat at Ain-ul-Tamr, the incensed Arabs of this area also sought revenge for the killing of their great chief, Aqqa.

A few days later, the entire Muslim army was concentrated at Ayn al-Tamr, except for a small garrison left under Iyad ibn Ghanm to look after Hira.

Khalid sent Al-Qa'qa'a ibn Amr at-Tamimi to Husaid and Abu Laila to Khanafis with orders to destroy the Persian armies at those places.

But this was not to be; for the march to Khanafis was longer than to Husaid, and Abu Laila failed to move his forces with sufficient speed to make up for this difference.

The other was a smaller objective and could be dealt with later without difficulty as by now the exact location of the imperial camps at Muzayyah, Saniyy, and Zumial had been established by Khalid's agents, and to deal with this objective he designed a manoeuvre which, seldom practised in history, is one of the most difficult to control and co-ordinate-a simultaneous converging attack from three directions made at night.