In response to Russia’s invasion, the Government has decided to review its 2021 Integrated Review. This work has been led by the Cabinet Office. The Government published its Integrated Review Refresh 2023 in March 2023.15 The Department now expects to publish its own refreshed plans in a new Defence Command Paper, which in turn will have implications for its Equipment Plan.16 The Department anticipated that the core of the Equipment Plan would still hold good but that there would be some noticeable changes to reflect lessons from Ukraine and other recent announcements, such as the combat air partnership with Japan and Italy. It also thought that further decisions, such as on the AUKUS partnership with the United States of America and Australia announced in March 2023, and on the programme to replace the nuclear warhead, would be reflected in the 2023 or 2024 planning rounds.17 The Department cautioned it would take time to firm up Integrated Review plans and address the challenges of deliverability.18