Prince Henry spent September ferrying troops and landing craft from Messina to ports further north along the Adriatic coast in preparation for possible landings in Yugoslavia and Greece. A force was assembled at Taranto in October, where Prince Henry was one of seven landing ships involved. On 15 October, the force sailed. Prince Henry arrived at Piraeus on 17 October and landed her troops. In the following weeks, the ship ferried men and supplies between Taranto and Athens. After the Germans retreated from northern Greece, Prince Henry took part in the relief mission to Salonika. On 23 December, the ship was ordered to Preveza to take over duties of Senior Naval Officer and to evacuate as many people as possible during the Greek Civil War. Prince Henry arrived on 24 October carrying Prince Davids flotilla of landing craft along with its own. From 24 to 29 December, Prince Henry evacuated 4,400 people. On 31 December, Prince Henry returned to Taranto.
