From 1960-1963, the Rahr family relocated to Japan, where he directed a Russian-language program on Japanese radio in Tokyo. During this time, he also taught Russian at the Tokyo campus of the University of Maryland. (When the Rahr family returned to Germany, he would teach Russian Literature and History at one of the University of Maryland's campuses there.) From 1963 until 1974, Gleb Rahr again worked for the Frankfurt publisher he had years before.
From 1974-1995, Rahr worked for Radio Liberty in Munich. He led programs going into the Soviet Union of religious nature along with the programs "The Baltic Lighthouse", "Russia Yesterday, Today, and Tomorrow", and "Not from Bread Alone." For many in the Soviet Union, these radio programs were the only opportunity to get truthful information about the plight of the Russian Orthodox Church.