Tensions are mounting in Paris, with Wilson and Clemenceau at odds over the future of Germany. Clemenceau wants Germany to be severely weakened, while Wilson wants to avoid future war through a more conciliatory approach that will offer the Germans the prospect of rejoining the family of nations. So poisonous have relations become that the French rejoice when the American president is struck down by a bad cold (which might perhaps be influenza). Wilson meanwhile has taken the step of having a warship in Brest readied to bring him home, in the event that the talks break down.
For now though the Americans and French manage to paper over their difference. Wilson also recovers from his illness. But now he faces new antagonists: the Japanese. As the only major non-white power at the conference, the Japanese are keen to insert a clause into the League of Nations covenant affirming the equality of all races. This is deeply problematic to Wilson, as he knows that any recognition of racial equality will cause uproar in the United States. Other nations are however more sympathetic; when Japan’s Makino presses the amendment to the covenant today, the racial equality clause passes. Nevertheless Wilson rules that the strength of opposition means that it cannot be included in the covenant.
The Japanese do not publicly contest Wilson’s ruling. Privately though they intimate that this affront may mean that they will be unable to sign the final peace treaty.
Woodrow Wilson and Makino Nobuaki (Wikipedia: Racial Equality Proposal)