In the old days of the allied community there was a diverse amount of groups, ranging anywhere from American, British, French, Soviet, etc. All were united under one group, SHAEF, but did not have to rely on SHAEF completely for survival. SHAEF was still a great thing to have, as it saw many small and large Allied groups alike come together and fight for the cause. Nowadays, such alliances are hard to find. The last such alliance (to my knowledge) died in the August of 2016, and this was primarily due to a poor choice of officers.