[1][2] While in Siberia, Losik collaborated with the Belarusian newspaper "Nasha Niva" and corresponded with a number of writers and public figures in Belarus.

[1][2][3][4] Between May 1918 and December 1919, Losik was Chairman of the Belarusian Democratic Republic and sought to achieve the international recognition of the new state and to prevent the partition of Belarus.

[1][2][3][4] Losik's frictions with the Soviet authorities began in 1922, when his textbook "Practical Grammar of the Belarusian Language" was badly received and he was briefly arrested.

[1][4][5] In July 1930, Losik was arrested in connection with the Case of the Union of Liberation of Belarus and was subsequently stripped off his academic titles and deported to the Saratov region of Russia.

[1][2][6] In June 1938, Losik was arrested in connection with the case of the "Counter-Revolutionary Organisation of Political Forces in Saratov” and on 31 March 1940 was sentenced to five years in the Gulag.