Cao sing the song and asked each person to write another song for "The Viet Minh Frontline". He posted his own "", meaning "Killing Fascists". Văn Cao wrote "", meaning "Vietnam Soldiers". Both songs are still popular and sung to the public today. As a national anthem On 17 August 1945, Hồ Chí Minh approved "Tiến Quân Ca" to be officially recognized as the anthem of the Democratic Republic of Vietnam. On 2 September 1945, marching was officially performed on the day of the Proclamation of Independence at Ba Đình Square by the Liberation Army band commanded by Đinh Ngọc Liên. At the day before the performance, musicians Dinh Ngoc Lien, Nguyen Huu Hieu, and Văn Cao discussed for changing the two words in "Tiến Quân Ca" in order to shorten the song by shortening the length of the first E pitches in the word "" and the F in the middle of the word "" to make the song more "snappy". In 1946, the 1st National Assembly officially recognized "Tiến Quân Ca" as the national anthem. In the first Constitution of the Democratic Republic of Vietnam in Article 3, it states directly about the national anthem. In 1955, the 5th session of the first National Assembly decided to invite authors to participate in another editing of the song. Văn Cao had regrets after this because the "heroic spirit" of the song had been lost after being edited. After 1975, the government of South Vietnam fell, and on 2 July 1976, the Provisional Revolutionary Government of the Republic of South Vietnam (in most common situation, the phrase "Viet Cong" actually refers to it) and the Democratic Republic of Vietnam agreed to be reunified into the new Socialist Republic of Vietnam. "Tiến Quân Ca" was chosen as the national anthem. In 1981, a contest was opened for a new national anthem but after more a year, it was and has never been mentioned again nor are there any official statement about the results. Thus, "Tiến Quân Ca" remains today as the national anthem of Vietnam. Copyright Copyright of the lyrics and the music sheet In 2010, Nghiêm Thúy Băng, the wife of late musician Văn Cao, addressed a letter to the Minister of Culture, Sports and Tourism of Vietnam proposing to donate the work "Tien quan ca" to the public, the Party, the National Assembly and the State. This is also