French occupation of Frankfurt occurred from 6 April to 17 May 1920 as part of the Allied occupation of the Rhineland. The principal city occupied was Frankfurt, but the French also occupied Dieburg, Darmstadt, Hanau and Homburg. The occupation was in response to the mobilisation of armed forces by the government of Hermann Müller to suppress the Ruhr Uprising - which in turn was part of a widespread strike movement which defeated the Kapp Putsch.