France,
a great power, at least before June of 1940, owned a powerful navy. Not quite as big as the Royal Navy, but far
bigger than anything Hitler had at his disposal. With the French fleet under his control,
Operation Sea Lion might have worked.
The Germans possessed a very small fleet, and the British had been
making it smaller. They sank the Graf
Spee and at Narvik HMS Warspite had steamed up a fiord, cornered and sunk most
of the Germany
destroyer fleet. In the summer of 1940,
the Royal Navy had better than 100 destroyers, backed up by thirty odd cruisers
and half a dozen battleships.
The Germans had practically
nothing. The Royal Navy would have had
no trouble sinking anything the Germans had in mid Channel.
On the other hand, if Hitler had
laid his hands on the French fleet, he would have had a chance. The bulk of the French fleet was at Oran
in North Africa. The
British send a large fleet to Oran
and told the French Admiral Gensoul in command that he had three choices, sail his
fleet to British ports, sail to the French West Indies (Martinique)
or sail to the United States. Otherwise be sunk right there at Oran. The
French tried to stall for time. The
British were in no mood to put up with that, they opened fire and sank the
entire French fleet right then and there.
You would have thought that after 1000 years of dealing with the
British, the French would have understood what they could and could not get
away with. Apparently not. Needless to say, this ruined Anglo French
relations for the rest of WWII, but it did keep the French fleet out of German
hands.