The Pink Map Plan was not something the Portuguese suddenly proposed; it was a Great African Colonization Plan put forth by Portugal based on the conditions of its African colonies after the European powers accelerated colonization in Africa.
The establishment of Portugal's West Africa Colony and Mozambique Colony had been a long-standing process, and the topic of merging these two colonies had always been a matter secretly planned by the Portuguese Government and the Royal Family.
The Portuguese have also been exploring the geographical environment of the Congo Basin. Unfortunately, Spain was completely ahead of Portugal, establishing the Congo Territory even before the Portuguese.
This seriously disrupted the Portuguese plans, leaving Portugal to retreat and seek alternatives by conducting colonial development south of the Congo Basin, attempting to establish a Great African Colony between the Spanish and British colonies.
