The Algerian-Numidian War of 1957-1958 was a conflict between the newly independent nations of Algeria and Numidia, following their respective decolonization from British rule in 1955. The war saw Algeria invading Numidia with the aim of unifying the two territories under Algerian control. The invasion and subsequent conflict led to intervention by the Organization of Democratic Nations (ODN), which ultimately forced Algerian forces to withdraw from Numidia and established a demilitarized zone along the border.
In the years following their independence, both Algeria and Numidia struggled to establish stable governments and address pressing domestic issues. Algeria, under the leadership of <NAME>, transformed into a quasi-dictatorship and aligned with Russia and the International Republican Coalition (IRC). Numidia, on the other hand, sought to maintain its sovereignty and develop its economy.
Algeria viewed Numidia as a part of its historical territory, believing that the division of the lands during the colonial period was artificial and unjust. By unifying the territories, Algeria sought to reclaim its perceived rightful borders and establish a stronger, more cohesive nation, guided by the principles of National Republicanism.
In 1957, Algeria launched an invasion of Numidia, seeking to incorporate its neighbor into a unified Algerian state. The invasion was met with stiff resistance from the Numidian army, supported by Great Britain and other ODN nations. As the conflict escalated, the ODN condemned Algeria's actions and assembled a coalition of member states, including Great Britain and other allies, to intervene in the war.
The ODN coalition launched a series of military operations, pushing Algerian forces out of Numidia and establishing a demilitarized zone along the border between the two countries. These operations were marked by intense fighting and significant casualties on both sides.