My father used to tell me that during Resistence-Against-Jap-War, every Chinese people who engaged in the war would have sung the subject march, even including Chiang Kai-shek himself.  Attached below is a brief report about the origin and the creation of the song; but for more detailed information, please google to find the biographies of the lyricist Mr Tian Han and that young composer of genius Mr Nie Er.

https://t.m.youth.cn/transfer/toutiao/url/3g.youth.cn/rmtj/202012/t20201213_12616819.htm?tt_group_id=6905717492396589575

PS I did translate the march myself and post it at http://blog.udn.com/kkuo0810/124360998, kindly read it again, thanks.