This is an international organization whose goals included disarmament; preventing war through collective security; settling disputes between countries through negotiation and diplomacy and improving global welfare, it was to be formed after WWI.

It´s the League of Nations.

Explanation:

The League of Nations was an attempt to put into practice an ideal that would lead to world peace and no more wars, but unfortunately, it was born with several important shortcomings. Unlike today´s United Nations, it did not have any means to enforce its resolutions, and some key nations did not join the organization; this is the case of the United States, whose Senate refused to ratify the adhesion to the organization.

c 3 branches because idk why they had 3 well when:

you think of it there are still contrys with 3