HMAS Sydney (DDG 42), a Hobart-class air warfare destroyer operated by the Royal Australian Navy. It is equipped with a Mark 45 Mod 4 5-inch gun and a 48-cell Mark 41 Vertical Launch System. The ship is designed for air warfare and utilises the AEGIS Baseline 9 combat system.

German Navy tender FGS Mosel (A512), an Elbe-class replenishment ship.It is designed to support smaller vessels like minesweepers, fast attack craft, or submarines while at sea.Key features include a large crane for replenishment at sea and a crew of 40 standard personnel, plus accommodation for additional repair teams or staff.

US The Senate Armed Services Committee wants USN to keep developing DDG(X) – c14,000 tonne replacement for Arleigh Burke-class destroyers in tandem with the Trump-class battleships. The battleships will inevitably be cancelled, and a more realistic contingency plan is needed.

Vanguard class ballistic missile submarine (SSBN) in service with the Royal Navy. The class was introduced in 1994 as part of the Trident nuclear programme, and comprises four vessels: Vanguard, Victorious, Vigilant and Vengeance, built between 1986 and 1999 at Barrow-in-Furness

In 1984, the Leander-class frigate HMS Jupiter became wedged under London Bridge after the captain had declined to use available tugs to help navigate the currents of the Thames. The accident resulted in significant damage to both the ship and the landmark. The captain was court-martialed and severely reprimanded.