Naturally the details of any plan proposed would become the subject of discussion and the advisability of adopting the provisions would arouse controversy and dispute.

Thus unanimity in approving a world organization did not mean that opinions might not differ radically in working out the fundamental principles of its form and functions, to say nothing of the detailed plan based on these principles.
In May, 1916, President Wilson accepted an invitation to address the first annual meeting of the League to Enforce Peace, which was to be held in Washington.

After preparing his address he went over it and erased all reference to the use of physical force in preventing wars.

I mention this as indicative of the state of uncertainty in which he was in the spring of 1916 as to the functions and powers of the international organization to maintain peace which he then advocated.

By January, 1917, he had become convinced that the use of force was the practical method of checking aggressions.