Multilateral
Multilateral https://diplomacy.state.gov/wp-content/themes/corpus/images/empty/thumbnail.jpg 150 150 https://secure.gravatar.com/avatar/a593d829a559e886bafacbed39688d04?s=96&d=mm&r=gInvolving more than two nations (which would be bilateral). International organizations, such as the United Nations, the World Trade Organization, and the Organization for Security and Cooperation in Europe, are multilateral in nature.