The largest organization by membership is Polish Scouting and Guiding Association (Związek Harcerstwa Polskiego; ZHP) with about 140,000 members.
Poles, both adult and young, formed many grass-roots movements and organizations, aimed at preserving the nation and preparing for the eventual struggle for independence.
However, all the groups accepted similar style and design, and the worldwide scout badge with a lily and the extra letters ONC (standing for "Ojczyzna, Nauka, Cnota",[4] i.e. "Fatherland, Study, Virtue").
Thanks to the influence of the latter, to this day Scouting code in Poland obliges "to be pure in thinking, in speech, and in deeds; not to smoke; not to drink alcohol".
They became nicknamed the Grey Ranks (Szare Szeregi), and cooperated with the Polish Secret State and the Armia Krajowa resistance.
At the same time the youngest Scouts were involved in so-called "small sabotage" under the auspice of the Wawer organization, which included dropping leaflets or painting the kotwica sign on the walls.
Before, in September 1912, Tadeusz Strumiłło and Jerzy Grodyński [pl] helped to start the Scout movement in Greater Poland.
They gained more outstanding people, for example Jan Konkolewski, who previously collected a group of boys dedicated to diversion and sabotage of the German Army, the so-called "Zouaves".
The temporary interruption was not exactly caused by the imposed martial law, but mainly the absence of the mature leadership, who were mobilized in the German Army.
Bronisław Drwęski, commanding the Scout troop named after Kazimierz the Great, died a few days after serving a 3 months prison term.
Thanks to the aid of Józef Kostrzewski, Wierzejewski arranged a secret den in the Museum of PSFAS (Poznań Society of Friends of Arts and Sciences) and lived there.
He also took a calculated risk himself, on the strength of a self-produced passport and travel document he tried to cross the border to Switzerland and contact the Polish Aid Committee.
By the end of 1916, the integration progressed further, resulting in the creation of a secret Headquarters of Scouts in the German Reich (territory).