Ida Yakovlevna Nudel was a Soviet-born Israeli refusenik and human rights activist, known as the 'Guardian Angel' among fellow activists for her tireless support of Jewish dissidents imprisoned in the Soviet Union. Born on April 27, 1931, in the Soviet Union, she worked as an economist in Moscow before applying for an exit visa to emigrate to Israel in 1971. Denied the visa, she lost her job and became a prominent refusenik, engaging in public protests and smuggling messages and supplies to prisoners, including her friend Natan Sharansky. Arrested in 1978 for possessing a shortwave radio receiver, Nudel was sentenced to four years in a penal colony, followed by five years of internal exile in Siberia. Her imprisonment drew global attention, with campaigns by figures like Elie Wiesel and Leonard Bernstein pressuring Soviet authorities. Released in 1986 after seven years, she finally received permission to leave and immigrated to Israel in 1987 via the United States. In Israel, she continued advocacy work, supporting new Soviet Jewish immigrants and maintaining her commitment to human rights until her death on September 14, 2021.