Premise: the 6 February 1934 crisis in France is more severe and the right wing movements together with sympathizing parts of the army topple the government of the Third Republic. A double leadership of François de La Rocque and Charles Maurras is now at the top of the state. The initially hostile position against Germany is resolved, when France, Germany and Italy sign the European Accord in spring 1936. Then the three begin to carve the neighboring states.
The United Kingdom cannot do much about this. With France becoming the de facto leader of the fascist Accord, it has lost it's major continental ally.