There he organized the Gymnastics Society "Hajsak" and published articles on the physical culture of Belarusian youth.

Kazłouski edited its press organ New Plot Type, which was confiscated multiple times by the Polish authorities.

Up until 1937, Kazłouski published numerous articles as well as poems for the party's press under the pseudonym "Kazłouszczyk".

[1] In the autumn of 1939, he became secretary of the Belarusian self-help groups where he worked with the Lithuanian Red Cross.

Alongside Akińczycem, Kazłouski attempted to reactivate the Belarusian Party of National-Socialism, but failed to obtain the consent of the German authorities.