Coastal Forces fought a close-range convoy war

What is a particularly interesting motor gunboat battle from the Second World War?

The answer highlights the broader coastal-convoy struggle between British motor boats and German S-boats, where repeated night actions mattered more than one isolated engagement.

The recurring battles around Channel and North Sea coastal convoys matter more here than one neatly bounded favorite action. British motor torpedo and motor gun boats had to intercept German S-boats while protecting slow traffic close to shore. Darkness, confined water, uncertain identification, and the sudden arrival of fast craft made these engagements chaotic. The campaign shows how escort discipline and rapid local decisions in small-unit actions carried strategic value.