Kreisel was sent to do War Service with the Admiralty immediately his university courses were over and he began work at West Leigh near Havant and close to the naval base at Portsmouth.
Kreisel ay ipinadala sa gawin War Serbisyo sa Admiralty kaagad ang kanyang kurso sa unibersidad ay higit at siya ay nagsimulang magtrabaho sa West Leigh malapit Havant at malapit sa base ng hukbong-dagat sa Portsmouth.