I've seen a couple of film adaptations of the French Revolution only and the reasons why Robespierre throws Danton to the wolves is confusing to me because I think politically the only thing separating the two is a question of whom is the 'more' radical. Surely Robespierre knew that if he advocated for the killing of Danton then it would mean his head. Then why do it? If Robespierre just played himself straight and cool and let Danton come back to Paris and spout his vitriol then Danton's head would have been under the blade. What did Danton do to Robespierre to make him not an ally and contrariwise, why did Robespierre not understand if he turned against Danton it would mean his head?