M31 provided the artillery support available to Arab forces defending Yanbu against the Ottoman Army. She later joined British and White Russian operations in the White Sea, extending her fire-support career well beyond the Mediterranean. Conversion to carry 52 mines and then to a torpedo-training vessel gave the hull new work between and during the world wars. Those conversions left the basic shallow-draught design intact. The Royal Navy therefore retained ships that could be returned to amphibious support without building a new class during the interwar period.
Notable Point · 22:47-24:42
M31's fire-support and training afterlife
M31's service at Yanbu, in the White Sea, and in training roles shows how a shallow-draught monitor could remain useful as naval needs changed.