Ahmad ibn Ibrahim al-Ghazi was born in Zeila, a major port city in the Adal Sultanate on the Gulf of Aden. His family belonged to the Somali nobility with strong connections to Islamic scholars and military commanders.

Ahmad began his education in Zeila's madrasas, studying Quran, Islamic jurisprudence, Arabic, and the military traditions of the Adal Sultanate. His teachers noted his exceptional intelligence and leadership qualities.

Ahmad joined the Adal military forces, quickly distinguishing himself through courage and tactical acumen. He learned cavalry warfare, siege tactics, and the use of firearms newly introduced from Ottoman allies.

Ahmad married Bati del Wambara, daughter of the Adal Sultan. This political marriage strengthened his position at court and gave him access to royal resources and influence over military appointments.

Ahmad was appointed Imam, the military and religious leader of Adal, after demonstrating his ability to unite various Somali and Afar clans under a common cause of jihad against the Christian Ethiopian Empire.

Ahmad consolidated his power in Adal by reorganizing the military, securing Ottoman support including firearms and soldiers, and preparing for a major offensive against the Ethiopian Empire.

Ahmad launched his jihad against the Ethiopian Empire, leading a well-organized army equipped with Ottoman firearms. His campaign would reshape the Horn of Africa and threaten the existence of Christian Ethiopia.

Ahmad won a crushing victory at Shimbra Kure against Emperor Lebna Dengel. Ethiopian losses were catastrophic, with much of the nobility killed and the emperor forced to flee into the mountains.

Ahmad's forces captured the Ethiopian royal treasury and numerous churches, seizing gold, manuscripts, and religious artifacts. The wealth funded further military campaigns and attracted more warriors to his cause.

Ahmad conquered the Tigray and Amhara regions, the heartland of Ethiopian Christianity. He converted or destroyed hundreds of churches and monasteries, fundamentally altering the religious landscape.

At the height of his power, Ahmad controlled approximately three-quarters of the Ethiopian Empire. Emperor Lebna Dengel died as a fugitive, and his successor Galawdewos struggled to mount resistance.

Ahmad defeated Ethiopian forces at Wofla, demonstrating his continued military superiority. His army's effective use of firearms and cavalry coordination overwhelmed traditional Ethiopian tactics.

Portuguese military expedition under Cristovao da Gama arrived to aid Ethiopia. Ahmad initially underestimated this force of 400 musketeers who would fundamentally change the war's dynamics.

Ahmad defeated the Portuguese expedition at Wofla, killing Cristovao da Gama and capturing most of the survivors. This victory seemed to ensure his final triumph over Ethiopia.

Ahmad received Ottoman reinforcements including 900 musketeers and artillery. With this force, he prepared for a final campaign to completely eliminate Ethiopian resistance in the highlands.

Ahmad was killed at Wayna Daga when a Portuguese musketeer shot him. His death caused his army to collapse, ending the Adal conquest. Ethiopia recovered, but both nations were devastated by decades of war.