Career
In February 1945 he replaced Flemming Muus as Special Operations Executive (SOE) parachute commander, and functioned as such until the liberation of Denmark on 5 May 1945. Lippmann was the last surviving senior figure from the wartime Freedom Council, which had been established to sabotage railways, bridges, factories, as well as oil and military installations. Lippmann married, in 1942, Bjorn Nielsen.
They had three children.