Sheikh Ibrahim bin Muhammad bin Mu‘ammar participated in several military engagements during the unification of the Saudi state under King ‘Abd al‑Aziz, the most prominent of which was the Battle of al‑Sabla. When conditions stabilized for the founding monarch and he began laying the foundations of the modern state, Ibn Mu‘ammar was summoned to contribute to establishing the administrative structure of the nascent government. His work began with the founding of the Royal Court, of which he became the first president, approximately eighty‑five years ago. During his tenure, the King entrusted him with significant responsibilities: he served as the King’s special envoy to various countries, then as Minister Plenipotentiary in Baghdad, before assuming the governorship of Jeddah—a position then known as Qa’immaqam of Jeddah—and later holding a senior post in the Ministry of Foreign Affairs.
This phase concluded with his appointment in September 1932 to the Office of the Crown Prince, the future King Saud. One reference notes that political tensions between him and a prominent member of the royal family contributed to his reassignment.
The fourth phase of Ibn Mu‘ammar’s public career was defined by his diplomatic service. He was appointed Minister Plenipotentiary of the Kingdom to Iraq in June 1923, shortly after the opening of the Saudi Legation in Baghdad. His selection for this post—located in one of the most influential Arab capitals with direct relevance to Saudi interests—reflected the King’s confidence in his competence. At the time, large Saudi communities resided in Iraq, and numerous Arab tribes lived along the border regions between the two countries. His principal duties therefore included protecting the interests of Saudi nationals, overseeing the implementation of newly signed border agreements, and supervising pilgrimage procedures for those wishing to travel to the Hijaz.
During his service in Baghdad, Ibn Mu‘ammar oversaw the organization of the first official visit of Crown Prince (later King) Saud in 1926. It is also recorded that, during this period, he argued against the lowering of the Saudi flag during the national mourning for the death of King Faisal I of Iraq in 1923, deeming it inappropriate given the sacred inscription of the shahada on the flag. This position later became an established Saudi protocol.
British authorities eventually protested his efforts to promote King ‘Abd al‑Aziz’s leadership in the Arabian Peninsula and his strong ties with tribal leaders, leading to his transfer from Baghdad after five years of diplomatic service