 Complete the following phrase:  III.JG 27 left Italy in late July to return to Vienna. The gruppe returned to the Mediterranean on 23 September, but located to Argos, near Athens in Greece; it remained engaged in combat operations in this theatre until March 1944. A fourth group was added to JG 27 in June. IV. Gruppe was created in Greece and placed under the command of Hauptmann Rudolf Sinner. This gruppe remained in action over Greece and the Balkans until March 1944. The Allied invasion of Italy, 