How do having American troops fight under European commander weakened Wilson's ability to influence a post war settlement?

Having American troops fight under European commanders diminished President Wilson's leverage in shaping the post-war settlement because it diluted the distinct American perspective he sought to promote. By integrating U.S. forces into European command structures, Wilson's vision of a self-determined and equitable peace, as embodied in his Fourteen Points, was often overshadowed by the priorities of European leaders focused on territorial and punitive measures. This alignment reduced his ability to assert American ideals and negotiate effectively, ultimately leading to a settlement that did not fully reflect his principles.