sentences:  The group operated primarily as a strategic bombardment organization, attacking such targets as oil refineries, communications centers, aircraft factories, and industrial areas in Italy, Germany, Austria, Czechoslovakia, Hungary, Rumania, Bulgaria, Albania, and Greece.The group received a Distinguished Unit Citation (DUC) for a mission on 4 April 1944 when the group, flying without escort, raided marshalling yards in Bucharest.Although heavily outnumbered by German fighters, the group succeeded not only in bombing the target but also in destroying many of the enemy interceptors.