The Royal Navy’s newest Astute Class attack submarine, HMS Agamemnon, departed the BAE Systems shipyard in Barrow-in-Furness on Tuesday. Following 13 years of construction, the 7,400-tonne vessel is beginning sea trials to prepare for active service.

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The £1.65 billion arrival at Walney Channel

HMS Agamemnon, a 97-metre Astute Class submarine, has officially begun its transition to sea trials after 13 years at the BAE Systems shipyard in Barrow-in-Furness. the vessel, which cost £1.65 billion to construct, moved through the shipyard's dock system into the Walney Channel and the Irish Sea this week.

The submarine was officially named at the BAE Systems site in Cumbria and celebrated with a traditional christening involving a bottle of beer from the local Ulverston Brewing Company. This milestone follows a significant delay, as the Ministry of Defence originally expecetd the vessel to be operational by 2022.

A fleet of five Astute Class subs currently stuck in port

The arrival of HMS Agamemnon comes at a moment of extreme vulnerability for the United Kingdom's maritime security. As reported by the source, all five of the Royal Navy's existing Astute Class submarines are currently unavailable for deployment due to ongoing maintenance and repair requirements.

This lack of available hulls leaves critical infrastructure, including sub-sea internet and power cables, exposed to potential sabotage by Russia.. Military experts have noted that these attack submarines are essential for shielding the Vanguard-class submarines that carry the UK's Trident ballistic missiles.

Sir Richard Knighton’s warning on Cold War-era threats

The Chief of the Defence Staff, Sir Richard Knighton, has characterized the current geopolitical climate as the most dangerous period since the Cold War. According to Knighton, Russia is actively testing British defenses and increasing the risks of crossing established lines. This warning follows reports that one of Britain's flagship £3.5 billion aircraft carriers recently broke down and was forced into port in Norway for repairs.

Lord West’s indictment of UK maintenance infrastructure

Former First Sea Lord Lord West has criticized the systemic failures that led to the current submarine shortfall . He argued that a lack of investment in dry docks , maintenance facilities, and spare parts has left the Royal Navy in an "unacceptable" position.

According to Lord West, the shortage of personnel required to maintain and repair these vessels has contributed to the current crisis. He noted that without available attack submarines to protect ballistic missile assets, the UK is placed in a very difficult position.

Can the Agamemnon close the gap in UK sub-sea defense?

While the HMS Agamemnon represents a major engineering achievement, several questions remain regarding its immediate impact on national security. it is currently unclear how long the sea trials will last before the vessel is fully commissioned into active service. Furthermore, the Ministry of Defence has not yet detailed how it plans to resolve the maintenance backlog that has sidelined the rest of the Astute Class fleet,which is capable of carrying up to 38 Spearfish torpedoes and a battery of Tomahawk missiles.