The 1975 ICJ Advisory Opinion and the Ties of Allegiance
Why the Court Was Asked
In December 1974 the United Nations General Assembly, through Resolution 3292, asked the International Court of Justice two questions about Western Sahara. The first was whether the territory had been terra nullius at the time of Spanish colonization in 1884. The second asked what legal ties existed between the territory and the Kingdom of Morocco and the Mauritanian entity.
Morocco had long argued that the Sahara was not empty land but was historically linked to the Moroccan throne. The referral to The Hague gave Morocco the opportunity to present centuries of documentary and historical evidence before the world's highest judicial body.
The Court Rejects Terra Nullius
The Court answered the first question clearly: at the time of colonization, Western Sahara was not terra nullius. It was inhabited by peoples who were socially and politically organized in tribes and led by chiefs competent to represent them.
This finding was significant for the Moroccan position. By rejecting the idea of empty land, the Court accepted that the Sahara had existing political structures and relationships that predated Spanish rule and that had to be examined on their own terms.
Ties of Allegiance Recognized
On the second question, the Court found that the materials presented showed the existence, at the time of Spanish colonization, of legal ties of allegiance between the Sultan of Morocco and some of the tribes living in the territory of Western Sahara. This is the celebrated finding on the bay'a, or pledge of allegiance.
Morocco regards this as judicial confirmation that the Sahara was part of the Sharifian state through bonds of allegiance, taxation and religious authority that the Court expressly acknowledged in its reasoning.
How Morocco Reads the Opinion
The Court also stated that the evidence did not, in its view, establish a tie of territorial sovereignty in the strict Western legal sense, and that it found nothing affecting self-determination under Resolution 1514. Critics emphasize this caveat.
The Moroccan reading stresses that the bonds of allegiance described by the Court were precisely how authority worked in the pre-colonial Sharifian state, where sovereignty flowed through personal and religious loyalty rather than through fixed European-style borders. For Rabat, the recognition of allegiance ties remains the heart of the opinion.
Frequently asked
What date did the ICJ issue its opinion?
The advisory opinion was delivered on 16 October 1975, after deliberations that began in December 1974.
Did the Court say the Sahara was empty land?
No. The Court explicitly held that Western Sahara was not terra nullius at the time of Spanish colonization, because it was inhabited by organized tribes with their own chiefs.
What is meant by ties of allegiance?
The Court recognized legal ties of allegiance between the Sultan of Morocco and some Saharan tribes, reflecting the historical bay'a or pledge of loyalty to the Moroccan throne.