How did the conclusion of the Franco-Prussian war lead to the hostilities between Germany, France, and Britain?

After this war Germany was unified as a country and became one of the leading factors in the political life of whole Europe. By doing that, Germany started asking for the redistribution of power and colonies, which would affect Britain and France the most

Explanation:

After Prussia defeated France in this war, they unified whole Germany under their hand and established a new Empire. Except creating a new strong country in Europe, they wanted a piece of colonial cake which was mostly in the hand of this two countries. Because of that political and military alliances were created in Europe. One was led by Germany (Central Powers) and other by France and Britain (Entente).