Northern Transylvania was the region of the Kingdom of Romania that during World War II, as a consequence of the August 1940 territorial agreement known as the Second Vienna Award, became part of the Kingdom of Hungary. With an area of 43,104 km2 (16,643 sq mi), the population was largely composed of both ethnic Romanians and Hungarians.
Hungarian troops marching in Zalău (Zilah) on 8 September 1940
Monument in memory of the victims of the Treznea massacre
Crowds throw flowers to welcome the Hungarian troops into Kézdivásárhely (Târgu Secuiesc), September 13, 1940
Ethnic Germans giving the Nazi salute while welcoming the Hungarian troops
The Kingdom of Romania was a constitutional monarchy that existed from 13 March (O.S.) / 25 March 1881 with the crowning of prince Karl of Hohenzollern-Sigmaringen as King Carol I, until 1947 with the abdication of King Michael I and the Romanian parliament's proclamation of the Romanian People's Republic.
Proclamation Act of the Kingdom of Romania
Romanian pavilion at EXPO Paris 1937
The Malaxa Prime, a Romanian-made steel-wrought locomotive
250 mm Negrei mortar