General Mackay's situation

General Mackay found that the Greek Central Macedonian Army had withdrawn from their positions at Perdika. He had not been informed beforehand. Now, he found that the last of the army was to move from the right to the left, and that there were 4,500 men, not the 3,000 that he had been led to believe. General Mackay ordered the Greeks to withdraw at 3pm on 12 April 1941. He gave them thirty trucks (lorries) to help with the move. General Mackay then gave orders to the 19th Australian Brigade to be ready to move by early on morning of 13 April. He wanted them in their vehicles by 4am. After the 19th Brigade withdrew, the remaining units would revert to the armoured brigade command, under Brigadier Charrington. Plans were disrupted by the German attack that hit about 8am on 12 April. This is based on the account in Vol.II of the Australian Official History.