On 25 February 2020, the UK released a Written Statement outlining that the current UK nuclear warheads will be replaced and will match the US Trident II SLBM and related systems. The commander of the US Strategic Command, Admiral Charles A. Richard, told a US Senate hearing that the UK was already working to replace its warheads. The new UK warhead was planned to fit inside the future US Mk7 aeroshell that would house the future US W93 warhead. It would be the first UK-designed warhead in thirty years, since the Holbrook, an Anglicised version of the US W76. However, the US Congress was reluctant to authorise the US$32 million in funding for the first phase of design of the new aeroshell. Meanwhile, construction of the £634 million Pegasus enriched uranium facility was suspended in 2018, the £1,806 million Mensa warhead assembly facility was still under construction, and the proposed Hydrus facility for hydrodynamic weapons testing was cancelled in favour of using the French Teutates-Epur facility in Valduc.