Conceal the plan behind cover schemes and road work

Japanese intelligence is expected to look for British preparations, so the command develops several credible plans instead of relying on perfect secrecy. Keyes's alternative cover schemes around Operation Claymore provide the model for making the same units appear connected to different operations. Road building and other works can be presented as ordinary wartime infrastructure while creating fortified positions across Malaya and Johore. The deception works if observers find several believable possibilities but cannot tell which one will be executed. Civil engineering serves both as a cover story and as the physical basis of the proposed defensive lines.