After Israel's independence in 1948, Levanon served in a variety of roles to encourage the well-being and emigration of Soviet Jewry. Due to the covert nature of his work, Levanon's decades of service were largely unknown until after his retirement, during the last days of the Soviet Union.
After Israel's independence in 1948, Levanon played various roles to promote the health and emigration of Soviet Jewry. Due to his clandestine work, Levanon's long-term contributions were largely unknown until after he retired during the final years of the Soviet Union.