From 1939, Polish youth created multiple resistance organisations. Children also joined military organisations despite the age limit, where they acted as liaison or distributor. At the end of the war in extreme situations also acted in Operation Tempest or Warsaw Uprising. In November 1942 were put in place age ranges: school of military support aged 12 to 15 years; same school and acting in Minor sabotage, Operation N, liaison office and reconnaissance aged 16 to 18 years; older had military training and joined Home Army. There were only few well known children aged below 14 who took part in military fights.