
1) Capital of former nation 2) City of China 3) City in Asia 4) City in China 5) City of Asia
Found on
https://www.crosswordclues.com/clue/changchun

Industrial city and capital of Jilin province, northeast China; population (2001 est) 1,868,600. It is the centre of a fertile lowland agricultural district, and manufactures machinery, motor vehicles, and railway rolling stock and equipment. As Hsinking (New Capital) it was the capital of Manchukuo from 1932 to 1945, during the Japanese occupa...
Found on
https://www.encyclo.co.uk/local/21221

a city in and the capital of Jilin province, in NE China: former capital of Manchuria. 1,200,000. Formerly,
Found on
https://www.infoplease.com/dictionary/changchun
No exact match found.