On this day in 1902 the Royal Navy first submarine, Holland 1, made it’s first dive under the waves. The start of the RN Submarine Service is today charged witht ther defence of the Nation via the continuous at sea deterrent.

According to information published by WarshipCam on January 28, 2025, the Royal Australian Navy’s second Arafura-class offshore patrol vessel, NUSHIP Eyre (OPV 203), has officially commenced its builder’s sea trials off the coast of Adelaide.