Would Germany annex French Channel ports?

Would Germany seize large parts of the French coast after a quick victory?

Probably not; Germany already has large ports, and eastern or industrial French territory would be a more plausible demand.

Military victory would not necessarily lead Germany to seek permanent Channel bases. Germany already possesses major ports, leaving little strategic need to annex a long strip of French coast. Eastern territory or the industrial areas of northern France are presented as more plausible prizes. A defeated France and a Germany planted directly on the Channel would create very different postwar security problems for the Royal Navy.