Answer We presume that "occupy" in the context means sending a force possibly including warships, sufficient to ensure an orderly transfer of authority to some interim central Greek Government. Serious disorders are likely to break out as soon as the Germans withdraw and will degenerate into civil war unless we intervene to ensure such a transfer of authority. However illogically we should get some blame if civil war beaks out. If we also failed to exploit the German withdrawal by vigorous offensive action in Greece or elsewhere the prejudicial effect of our failure to intervene would be intensified.