This new battle, known as the Second Abyssinian War, took place in April 1774 AD. The Abyssinians, under Emperor Asius, began raiding the borders of the Sultanate of Sennar. However, the Abyssinian raid emboldened the Emperor himself to raid Sennar. He marched at the head of a large army, with strict and clear orders to burn and kill people and take spoils of cloth, camels, and sheep. The army continued to march in the land of Sennar for eight days, fulfilling the orders of the Abyssinian ruler.

The Arabs who supported the government of Sennar stood firm, but the Abyssinians eventually overcame them. A large part of the Abyssinian army continued on its way until it reached the Blue Nile in the direction of Sennar from the east, while the rest of the army marched to east of the Denor. When Sennar saw these forces, it implemented a plan to besiege the Abyssinian army. The Sennari Islamic army managed to besiege the Abyssinian army in a triangle between the Blue Nile and the Denor and succeeded in defeating it. When the news reached the rest of the Abyssinian army, which was led by Emperor Asius himself, he saw no way to save the besieged army and therefore decided to retreat to their country.

Some sources suggest that the plan to besiege the Abyssinian army was conceived by one of the princes of the Dajo dynasty, rulers of Darfur, who was a political refugee with the Sultan of Sennar.

From this, we see that the Funj and their Arab allies contributed significantly and extensively to the spread of Islam, using the permissible horse in opposition to the Abyssinians and spreading Islam among the pagans. They also resorted to peaceful means, working to revitalize the Islamic da'wah. They desired the Islamic religion, spread its teachings, supported the kuttabs (traditional Quranic schools), sent delegations to Al-Azhar, and encouraged scholars, religious men, Sufi leaders, and anyone concerned with raising the name of Islam high in the heart of the African continent.