It's fascinating. Basically the entire world's phosphate comes from this (it has 70% of the world's proven reserves). No country on earth recognizes Morocco's claims over this Saharawi land. At least they didn't until 2020 when Trump became the first in exchange for Morocco normalizing relations with Israel. The case has been taken to international court multiple times and always ruled against Morocco's claims.

Despite basically the whole world recognizing this unjust occupation, neither the Soviets, the US, Europe, nor China cared to do anything and disrupt this crucial aspect of the global fertilizer industry. The only allies the Saharawi had was Algeria.

Surprisingly, the best researched documentary I've seen on this came from a Youtuber called Cogito: https://www.youtube.com/watch?v=-T2ha4a_AuE

EDIT: oh yeah and ofc Kissinger is involved in this :(