The United States and World Organization

On what conditions should the United States enter a world organization for the maintenance of peace? Viewing the question broadly, should not the United States enter world organization upon one condition, namely, that the organization give promise of the utmost achievement in the maintenance of peace? Unless we are prepared to repudiate the avowals of our statesmen and reverse what is perhaps the oldest and most fundamental tradition of our foreign policy, can we consistently insist upon any other condition than this one