The Dunkirk Evacuation

If, hypothetically, one were to believe that the Dunkirk Evacuation were proof that the air force was more powerful than the land army, one would be greatly mistaken. A certain honorable colleague of mine attempted to use this as proof of the superiority of the air force over land armies, when, in his own words, it was an attempt by the shattered remnants of the British forces to escape. What's more, they were escaping from the beaches! On boats! The day boats count as land weapons, while it will be glorious, is not a day that had occurred during the time of the Dunkirk evacuation. It was the shattered remnants of an army fleeing by sea - not an example of the air force defeating the army. Not at all.