What does "Other European powers such as France and Holland remained vulnerable to attack from land forces; therefore, they had to divide their attention and resources between the land and the sea. " mean?

26 Sep 2016

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Japanese
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Question about English (US)
What does "Other European powers such as France and Holland remained vulnerable to attack from land forces; therefore, they had to divide their attention and resources between the land and the sea. " mean?

Native language
Japanese

Native language
English (UK) English (US)

Native language
Japanese
0