Although Lithuania did not resist the aggression of the USSR with weapons on 15 June 1940, the majority of the population – especially the youth – met the actions of the occupiers, who were trying to destroy the state and enslave the spirit of the nation, with the greatest hatred. In public places, they sang the Lithuanian national anthem and patriotic songs instead of the Bolshevik “Internationale”, much to the chagrin of the occupiers. Despite the growing repression, young people celebrated national and religious holidays, raised Lithuanian flags, hung portraits of Lithuanian intellectuals in their homes, and laid wreaths for the nation’s heroes in cemeteries. Schoolchildren, paraphrasing well-known poems, mocked the authorities, hung portraits of communist idols upside down, told anti-Russian jokes, and refused to carry communist posters in forced demonstrations. Teachers refused to spy on their students and colleagues and report them to the Cheka. Patriotic sentiments did not subside in the army units that had not yet been disbanded. The occupation authorities put soldiers on trial for celebrating the Day of Restoration of the State of Lithuania and shot one of them on the spot. Young people distributed flyers, founded secret organisations, and actively participated in the underground press. From July 1940 to May 1941, Soviet intelligence – the NKVD – uncovered 75 underground organisations with a total of 36,000 members. Guided by premonitions of an impending clash between Nazi Germany and the communist USSR, the illegal resistance prepared to rebel. The 1941 June Uprising against the Soviet occupants could be called the Youth Uprising, because most of the rebels were young people.