HMS Formidable's construction and commissioning timeline, the limited tank force, and the balance between Hurricanes and Spitfires reveal a mobilisation programme still maturing. Formidable was launched just before the war yet still needed more than a year to complete trials and enter service. Britain also fielded many Matilda I tanks and far more Hurricanes than Spitfires while bases and carrier plans remained unfinished. The Royal Navy expected trouble from Germany or Japan in the early-to-mid 1940s, so war in September 1939 forced it to fight before the planned rearmament horizon.
Chapter · 28:57-32:26
Why Britain's rearmament program was aimed at 1942
The watch point compares ships, tanks, aircraft, and bases to show that Britain expected a major war later than September 1939.