Final answer:
Churchill believed an invasion of British soil could occur in the near future due to the enemy's inability to mount a successful attack and the strength of the British naval forces.
Step-by-step explanation:
Churchill believed that an invasion of British soil could occur in the near future because the enemy could not mount a successful attack. The British naval forces created a strong barrier in the ocean, making it difficult for the enemy to launch an invasion by sea. Churchill's belief was based on the fact that the enemy did not have enough resources to invade by ground and lacked the necessary food supplies.
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