Britain's military helicopter fleet is entering one of its most significant periods of transition since the end of the Cold War. The first major milestone came with the retirement of the Royal Air Force's Puma HC2 helicopters in 2025. Rather than purchasing another dedicated reconnaissance helicopter, the Army expects unmanned aircraft to assume many intelligence, surveillance, target acquisition, and reconnaissance (ISTAR) missions. During those years, Britain will simultaneously operate fewer utility helicopters, fewer reconnaissance helicopters, and rely much more on technologies that remain in early operational development rather than mature military service. If either assumption proves optimistic, however, the years beginning in 2027 could represent one of the leanest periods for British military helicopter capability in decades.