Sovereign state

Austrian Empire Armenian Soviet Socialist Republic Ukrainian Soviet Socialist Republic Francoist Spain First Philippine Republic Russian Republic First Republic of Armenia First Czechoslovak Republic Republic of Afghanistan France United Kingdom Kingdom of Hungary Kingdom of Bulgaria People's Republic of China Principality of Kyiv Principality of Smolensk Republic of Florence Ukrainian State North German Confederation Kingdom of Serbs, Croats and Slovenes Novgorod Republic Soviet Union Kingdom of Kandy East Francia Brazil Principality of Catalonia United Kingdom of the Netherlands Russia Canada member states of the United Nations Kingdom of Hungary Great Britain Kingdom of Hanover Multinational state Kingdom of Poland Kingdom of Sardinia Duchy of Anhalt Japan Dutch Republic Papal States United Arab Republic Republic of Texas Grand Duchy of Moscow Kingdom of Hungary Polish–Lithuanian Commonwealth Kingdom of Italy North Vietnam Kingdom of Naples United Kingdom of Great Britain and Ireland Republic of Genoa