Uprising in West Hungary

Austria Hungary(disarmament of the rebels in 1922) Czechoslovakia (small border conflicts) France (Non-combatant military mission) According to the Treaty of Trianon, the city of Sopron in western Hungary and its surroundings were assigned to Austria.

After an uprising in 1921 in this region, a referendum was held and 65.08% of the votes were in favor of belonging to Hungary.

This referendum was accepted by the major powers and the transition of Sopron and its surrounding 8 villages from Austria to Hungary was the only serious territorial revision in the years following the Treaty of Trianon.

In 1921, Major Gyula Ostenburg-Moravek led a detachment of mounted gendarmes through Sopron in support of the West-Hungarians who were protesting the Trianon Treaty , which would turn over West Hungary to Austria .