To what extent did the the two world wars settle the issues that caused them? what legacies to the future did they leave?

In expansive terms, the two world wars were caused by universal disunity and the collecting heap of grievances that developed with it. After the tidy had settled from the wars, associations were made to stay away from this continuation of disunity, including the United Nations and the European Union. The inheritance that the wars left is the possibility that once a country is extremely angry with something, it is difficult to keep away from war. For instance, at the Munich gathering preceding WWII, Britain and France attempted to settle some of Germany's grievances by giving Hitler a progression of gifts. In any case, the kind signals did not work and before long, the second world war broke out as a result of the grievances that still existed from the Great War, which should be the war to end all wars. Along these lines the wars leave the heritage of collaboration and the energy of bargain it request to keep up peace among different countries all through the world.

Spanish conquistadors demanded labour from natives.