ALL Countries That Participated in World War 1

Luxembourg hardly fought in WW1 it was simply taken over with almost no opposition, almost voluntarily. Albania does not even qualify for this technical opposition - its territory was violated first by Entente (not Allied) troops, Serbs fleeing from capture and then Italians and Greeks taking over territory they fancied - the Austrians were seen my many as the lesser evil and Albanian tribes fought on both sides. If anything I would put the country in the Central Powers column but officially it was neutral by international treaty. I can see no justification for calling it an Allied country