http://www.onwar.com/chrono/1941/apr41/f28apr41.htm
German victory in the Balkans
Monday, April 28, 1941 www.onwar.com
In the Balkans... In Greece, at Nauplia a burning merchant ship blocks the pier and 1700 men have to be left behind. At Kalamata (an Allied evacuation center) a German force bursts into the town but is eventually defeated by the 7000 troops awaiting evacuation. The naval force off the port sees the fighting and withdraws before the Germans are subdued. About 5000 troops are evacuated on the night of April 28-29th, the last night of the evacuation. It has taken Germany less than a month to overrun Greece and Yugoslavia.