After testifying at the Nuremberg trials, Friedman and his new wife decided not to return to Poland. For two years he directed the educational department of the Joint Distribution Committee in Allied-occupied Germany. He also helped the Center for Contemporary Jewish Documentation in Paris to set up its documentary collection.
After testifying at the Nuremberg trials, Friedman and his new spouse decided not to return to Poland. For two years he managed the educational division of the Joint Distribution Committee in occupied Germany. He also contributed to the establishment of the Center for Contemporary Jewish Documentation's documentation repository in Paris.