Answer:
The conference allowed Europeans to sell weapons to African countries, leading to an arms race on the continent.
Step-by-step explanation:
The Berlin conference of 1884 was called for by the Portuguese but hosted by German chancellor in 1884 in Berlin. the main purpose of the conference was on how regulate European colonization of Africa without the European Nations going to war among themselves and also regulate slave trade in Africa. some of the positive effects of this conference was the intention by the European nations to eliminate slave trade in Africa.
The conference allowing Europeans to sell weapons to African countries leading to arms race on the continent is still a problem plaguing Africa till date with several Militia terrorist groups springing up all over Africa in Modern times.
Every other results of the conference caused conflicts in Africa but the result still causing conflicts till date is : The conference allowed Europeans to sell weapons to African countries, leading to an arms race on the continent