Along with Italy 's stalled invasion Attack of Greece on 28 October 1940 , and the German-led invasion Attack of Greece ( Operation `` Marita '' ) and invasion Attack of Crete ( Operation `` Merkur '' ) , the invasion Attack of Yugoslavia was part of the German Balkan Campaign ( ) .

Between Benghazi to Agedabia , the British took Conquering captured Conquering and of the Operation Compass totals of and On 9 February , Churchill ordered Request the advance Self_motion to stop Process_end and troops Motion to be dispatched Sending to Greece to take part in the Greco-Italian War Military_operation ; `` Unternehmen Marita '' , a German attack Attack through Macedonia was thought imminent .