Hirschmann attended the Évian Conference but left early, describing it as "a facade behind which the civilized governments could hide their inability to act".
[11] He later served as special agent of the War Refugee Board in Ankara[12] In this post, Hirschmann assisted in the rescue of Jews from Eastern Europe, by pressuring governments to allow Jewish immigration through Turkey.
[15] Hirschmann was critical of Truman's policy towards post-war Germany, signing a statement in 1946 that accused his government of shielding Nazis from punishment for "hope of future gain and control of a base of operations in the dangerous game of power politics".
[17] Hirschmann used this connection for his diplomatic work, since La Guardia became head of the United Nations Relief and Rehabilitation Administration in 1946.
[20] In 1951, he spoke as a representative of the State Department at the Zagreb Peace Conference, defending the government's policy in the Korean War.