Angry with the suppression, brutality and racial intolerance of the
Nazis, she volunteered to work with the underground
National Movement Against Racism (MNCR). With time and growing atrocities by the Nazis, Spaak devoted herself to ridding France and her native Belgium of its oppressors. She joined the
Red Orchestra intelligence network, a
Soviet-sponsored organization founded by a
Polish Jew,
Leopold Trepper. This group conducted very effective intelligence gathering in
Germany,
France,
Belgium and
Netherlands. The network became so successful, even infiltrating the German military intelligence service
Abwehr, that the Nazis set up the "Red Orchestra Special Detachment" (
Sonderkommando Rote Kapelle) to destroy it. A mother of two, Spaak worked doggedly to save the lives of Jewish children who were facing deportation to the German
death camps. In early 1943, she was part of a group that saved 163 Jewish children who were about to be deported from the
Union générale des israélites de France (UGIF) centers. At enormous risk to herself and her family, she hid some of the children in her own home, helping to provide the children with clothing and ration cards and arranging for them be moved to the safety of homes of people in various parts of France willing to risk hiding them. ==Arrest==