Hungary–Romania relations
During World War II, Hungary and Romania became allies and participated in the war against the Soviet Union. But after the coup on 23 August 1944 Romania switched sides and fought against Hungary. Consequently, Soviet and Romanian troops invaded Hungary, occupied Northern Transylvania by October 1944 and re-established the Romanian administration in the region in March 1945. The 1947 Treaty of Paris reaffirmed the borders between Romania and Hungary as originally defined in Treaty of Trianon 27 years earlier, thus confirming the return of Northern Transylvania to Romania.
Crusade Against Communism Medal
The Medalia "Cruciada împotriva comunismului" ("Crusade Against Communism medal", in reference to Operation Barbarossa) was a Romanian military award of World War II. It was instituted on April 1, 1942 by the Royal Decree No. 1014, of King Michael I of Romania. It was commissioned to recognise the distinguished service of Romanian and other Axis Powers military and civilian personnel operating on both the Eastern and Home fronts.