The Hellenic Navy commissioned its seventh and final Roussen-class (Super Vita) FAC-M, HS Ypoploiarchos Vlahakos , on 29 September. (Dimitrios Mitsopoulos)

The Hellenic Navy's (HN's) seventh Roussen (Super Vita)-class fast attack craft-missile (FAC-M), HS Ypoploiarchos Vlahakos (P 79), was commissioned into service during a ceremony held at Amfiali Naval Base on 29 September.

Ypoploiarchos Vlahakos

The first Ada-class corvette on order for Ukraine, Hetman Ivan Mazepa, during its launch in Istanbul, Turkey, on 2 October. (Olena Zelenska/President's Office)

Turkish shipbuilder RMK Marine launched the first MilGem (Ada)-class corvette on order for Ukraine, Hetman Ivan Mazepa (F 211), at its shipyard in Tuzla, Istanbul, on 2 October.

The launch ceremony – attended by the First Lady of Ukraine, Olena Zelenska, and Commander of the Ukrainian Navy, Oleksiy Neyizhpapa – was announced on their respective twitter accounts the same day.

Dauntless sails through a calm Irish Sea on trials. (UK Royal Navy)

The UK Royal Navy's (RN's) second Daring (Type 45)-class destroyer, HMS Dauntless , has returned to its home port in Portsmouth after successfully completing engine trials at sea as part of a major power generation upgrade.

Dauntless