The League of Nations was a forum to. Through its charter, member nations pledged to.

The League of Nations otherwise referred to as LN was a forum for global intergovernmental organizations, which through its charter, member nations pledged to maintain world peace through disarmament, prevention of war and armed conflicts,

Explanation:

The League of Nations was a global intergovernmental diplomatic organization which was established in the 19th century after the first world war by the Treaty of Versailles, with its headquarter situate at Geneva, Switzerland. The key goal of its establishment was to maintain world peace by preventing war and armed conflicts of every form. It also aimed at encouraging disarmament, curbing diseases and other effects of war and making the word a better place. It core belief include the adoption of diplomacy and other forms of dispute resolution as a veritable tool in the maintenance, promotion and sustenance of world peace and tranquility. The figurehead nations of the league were France, Italy, England and Japan. It achieved success in resolving some disputes that could have degenerated into war, however, it failed to achieve it full purpose with the outbreak of the second world war. It was also criticized for not having a standing army, but rather relying on the army of the allied powers. Also, some notable nations refused to join the league such as the United States of America, Germany, Russia, etc. Also, the fact the its decision had to be unanimous was a major setback to its progress.