Which principle was established at the Berlin Conference to justify European claims to African territories?

The principle established at the Berlin Conference to justify European claims to African territories was the Effective Occupation principle.

To understand this, it's important to know what happened at the Berlin Conference, which took place from 1884 to 1885. During this meeting, European powers got together to decide how they would divide Africa among themselves to avoid potential conflicts over land. They did this without considering the existing African populations and societies.

The principle of Effective Occupation meant that a European country could claim a part of Africa only if it could demonstrate that it had established control over the area. This required a presence on the ground, like setting up administrative structures, enforcing law and order, and making treaties with local leaders. Essentially, it wasn't enough to just say you owned the land; the country had to actively manage and use it.

This agreement led to the "Scramble for Africa," where European nations rushed to establish their control over different parts of Africa, often without considering the impact on the indigenous people and cultures.