République démocratique hongroise
Upon the dissolution and break-up of Austria-Hungary after World War I, the Hungarian Democratic Republic and then the Hungarian Soviet Republic were briefly proclaimed in 1918 and 1919, respectively. The short-lived communist government of Béla Kun launched what was known as the "Red Terror", involving Hungary in an ill-fated war with Romania. In 1920, the country fell into a period of civil conflict, with Hungarian anti-communists and monarchists violently purging the nation of communists, leftist intellectuals, and others whom they felt threatened by, especially Jews. This period was known as the "White Terror". In 1920, after the pullout of the last of the Romanian occupation forces, the Kingdom of Hungary was restored.