The Democratic Party (SD) started its underground activities in the first months of German occupation. It played a significant role in Underground Poland, although considerably minor in comparison with the activity of the four parties of the Govemment coalition. Its role is confirmed by the participation, among others, in the Main Political Council; in its wide publishing and propaganda action, underground education, sabotage and military operations. It was different political views held by party members that were responsible for the party split-up. On July 4, 1943 (an underground convention) beside the Democratic Party “Prostokąt” (“Rectangle”) there came into being the Polish Democratic Party (SPD). In autumn 1943, SPD created the Youth ...