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.
List of international subsidiaries of IBM
IBM's Romanian subsidiary was Compania Electrocontabila Watson, incorporated in 1938 in Bucharest. Its customers included railroads, census, statistics offices, and the communication ministry. Bucharest had an IBM Swift Press card printing facility as well. The company helped the Romanian Central Statistical Institute in the Romanian Census of 1941 April, including the special 'Jewish census'. A problem occurred when there were not enough machines to do the job. Lier, with the help of US Commercial Attache Sam Woods and the Romanian Commercial Attache, got the Nazi government (including the Devisenstelle) to ship some machines from German-occupied Poland to Romania. The census proceeded. In Dec 1941 the US entered the war and Romania came under General Rule 11 so interaction with IBM NY and IBM Geneva was restricted. After the war in 1945 IBM submitted requests to the State Department to secure its Romanian bank accounts, and sent compensation claims for damaged equipment.