The League of East European States or Federation of East European States (German: osteuropäischer Staatenbund) was a 1914 proposal by the German Committee for Freeing of Russian Jews for a German-dominated consociational buffer state to be established in the Russian Partition of the multi-ethnic territory of the former Polish–Lithuanian Commonwealth.
The idea was conceived by prominent Zionist Max Bodenheimer, in the context of World War I and longstanding German Mitteleuropa ambitions, utilizing the concept of national personal autonomy or national curiae, which would allow Jewish representation in the government alongside other groups despite their Pale of Settlement dispersion. Bodenheimer was a founder of the German Committee for Freeing of Russian Jews. The Committee drew up a plan to establish a buffer state between Germany and Russia, created from territory to be taken from Imperial Russia. The biography by his daughter describes a divide and rule strategy to the benefit of Germany: "In this Federation Ukrainians, White Russians, Lithuanians, Esthonians and Latvians would together serve as a counterbalance to the Poles, and the Germans, and Jews would hold the balance of power between the two groupings." According to this plan, the new state should be a monarchy ruled by the Hohenzollern dynasty.
Bodenheimer submitted a Memorandum with the proposal to the German Foreign Office in 1914, where it and the Committee received the support of Erich Ludendorff and then Paul von Hindenburg, as he made the case to them that eastern Jews could be Germanised.