hair and dressed in men's clothing, Gertz presented herself at a recruitment office of the Polish Legion as, "Kazimierz Zuchowicz". All went well until the medical inspection. However, a sympathetic doctor promised to help, and she was assigned to serve as a medical orderly. After a few weeks "Kazik" was reassigned to an artillery unit, serving there for six months, and seeing action during the Brusilov Offensive. As she was a horse rider, she was able to serve in a signals platoon. After returning to Warsaw in 1917, following the Oath crisis, Gertz joined the women's branch of the clandestine Polish Military Organisation - Polska Organizacja Wojskowa. On 8 December 1917 during a demonstration in Saviour Square - (Plac Zbawiciela) in Warsaw, Gertz was arrested and sentenced to six months in prison, but having paid bail, she was released after a few weeks. Upon release she worked as a courier, and was involved in disarming German troops in November 1918. In December 1918 Poland finally gained its independence, and Gertz joined the People's Militia, and was assigned to the Armaments Section in March 1919. Polish–Soviet War In April 1919, soon after the outbreak of the Polish–Soviet War, Gertz enlisted in the Polish Army and was assigned to the 1st Lithuanian–Belarusian Division. In September 1919, she was appointed commander of the Ochotnicza Legia Kobiet - (2nd Women's Volunteer Legion) in Vilnius. The Women's Legions played an auxiliary role, usually engaged only in guard duties, but during the fighting for Vilnius, the 2nd Legion did see action at the front, helping to fight off the attacks of Hayk Bzhishkyan's Cavalry Corps. In the rank of lieutenant to which Gertz advanced in 1920, she was subsequently awarded the Virtuti Militari medal. At the end of the war in 1921, Gertz was demobilized and moved to the reserve forces. In 1922 her rank of lieutenant was "removed" from her on the grounds that there was no basis in law for a woman in the Polish armed forces to hold an officer rank. She worked for an engineering enterprise, Koncern Maszynowy S.A. from 1923, and after the May Coup of 1926, she became Chef de Cabinet in the office of Józef Piłsudski who was then General Inspector of the Armed Forces. In 1928 Gertz became one of the first 13 members of the Przysposobienie Wojskowe Kobiet (Women's Military Training) where she served as an instructor.