Coastal Forces was a division of the Royal Navy established during World War II.
This article attempts to pull together, for comparative purposes, some statistics concerning the coastal forces of different navies.
It starts with the above British definition of "Coastal Forces" and attempts to identify the equivalent boats in other navies.
In time, the need for smaller vessels re-asserted itself, as in this experience of the Royal Australian Navy: The motor launches quickly passed out of service after the war and coastal patrol duties once more devolved upon larger RAN ships.
From the early 1960s the Ton class minesweepers took on significant patrol responsibilities, particularly during the Indonesian Confrontation from 1962-1966.