A delayed American advance could bring the British Pacific Fleet into Saipan

If Japan delayed the American advance to Saipan, when would the Royal Navy enter the Pacific and what could it do?

It would probably arrive on a similar British timetable and could join Saipan and subsequent operations once Atlantic and Mediterranean ships became available.

A six-month delay in the American advance would not necessarily delay the Royal Navy by the same amount. British deployment depended on ships becoming available after Atlantic and Mediterranean commitments eased. If those forces arrived while Saipan was still contested, they could participate there instead of joining only later operations. The Royal Navy's historical work around Okinawa shows that it possessed the carrier and fleet capability for heavy Pacific operations once released. Global force allocation, rather than one theater's calendar, governed the British Pacific Fleet's arrival.