Operation Pike? Sorry to digress, but by this, the Allies could have helped Hitler. As WP says, the French airfields in Syria were supposed to be ready on May 15th. On May 10th, Germany attacked in the west. But what if Hitler had postponed the attack for some time? In June '40, Stalin annexed Bessarabia and the Baltic states. Shouldn't that be enough to make the WAllies take action? (Of course, that is just in case Stalin would dare to annex the lands when France is still standing.) And once they have devastated Baku and Batum, which produced 90% of the oil, Hitler could attack in the west first and take on the weakened SU one year later. While laughing how the WAllies took out his most dangerous opponent in Europe.