Then, Musa participated in the Russian Civil War against pro-White forces; due to his young age, he did not fight at the front, instead serving in a Red Army unit.

In Kazan, Cälil worked as copyist for the Qьzьl Tatarstan newspaper and studied at rabfak of the Oriental Pedagogical Institute.

Cälil joined the All-Union Communist Party (b) in 1929, which was the same year that his second collection, İptäşkä (To the Comrade; Yañalif: Iptəşkə) was published.

Until 1932, he was a chief editor of the Tatar children's magazine Keckenə iptəşlər, which was later renamed to Oktəbr Balasь (Little Octobrist).

The first of them, The Millions, Decorated with Orders was devoted mostly to youth and Komsomol, whereas in the second, Verses and Poems, was a general compilation of his writing.

During the 1930s, Cälil also translated to the Tatar language writings of poets of the USSR peoples, such as Shota Rustaveli, Taras Shevchenko, Pushkin, Nekrasov, Mayakovsky and Lebedev-Kumach.

Graduating political commissar courses, he arrived at the Volkhov Front and became a war correspondent in the Otvaga newspaper.

in concentration camps for Soviet prisoners of war, including Stalag-340 in Daugavpils, Latvia[4] and Spandau, Cälil was transferred to Dęblin, a fortified stronghold in German-occupied Poland.

Among others, the Idel-Ural legion was formed in Lager Jedlnia, General Government, consisting of prisoners of war belonging to the nations of the Volga basin.

The first battalion of the Volga-Tatar Legion that was sent to the Eastern Front mutinied, shot all the German officers there, and defected to the Soviet partisans in Belarus.

Cälil's first notebook was preserved by the Tatars Ğabbas Şäripov and then Niğmät Teregulov, both of whom later died in Stalin's camps.

Şäripov was also imprisoned in Moabit and received Cälil's and Abdulla Aliş's writings when the prison guards hid from bombing.

One notebook was brought to the Soviet embassy in Rome by the ethnically Tatar Turkish citizen Kazım Mirşan in 1946.

Then Tatar writers and the Tatarstan department of state security proved Cälil's underground work against the Third Reich and his death.

[6] Musa Cälil was awarded the star of the Hero of the Soviet Union in 1956 and Literature Lenin Prize in 1957 for The Moabit Notebooks.

Soviet Tatar composer Nazib Zhiganov wrote an "opera-poem" Dzhalil based on the life of Cälil.

[7] The Symphony-poem "Musa Jalil" written by Soviet Tatar composer Almaz Monasypov in 1971 was dedicated to the poet.