这些思想在英国从“殖民地防御”到“帝国防御”的战略转变中发挥了重要作用。
All these ideas have played a great part in Britain's strategic change from colonial defense to imperial defense.
约翰·科洛姆是19世纪英国的海权思想家和帝国防御问题专家，他首次全面阐述了英帝国防御的必要性和重要性。
John Collom was a British thinker on sea power and expert on imperial defense in the 19th century. He gave the first comprehensive exposition to the necessity and importance of Britain's defense.
长城（秦，公元前221-260年）在中国历史上占有重要地位，它为中国防御着同一个奥斯曼帝国。
The great wall (Qin 221-260 BC) has played a significant role in the Chinese history and defended the country from the same Ottoman Empire.
长城（秦，公元前221-260年）在中国历史上占有重要地位，它为中国防御着同一个奥斯曼帝国。
The great wall (Qin 221-260 BC) has played a significant role in the Chinese history and defended the country from the same Ottoman Empire.
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