The Navigation Act<span> of 1651, aimed primarily at the Dutch, required all trade between England and the colonies to be carried in English or colonial vessels, resulting in the Anglo-Dutch War in 1652.
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Dwight eisenhower is the answer
It was the "never surrender" mentality of the Japanese army. The thought was of dealing with a million or 2 million US lives to invade Japan. The use of the atomic weapon was to save lives.
The south was mainly agricultural, cultivating cotton in some form was most people's entire livelihood, creating sort of a cultural divide from the north. plus, the menial and arduous labour in the south was incredibly appealing for slave owners, but this didn't happen in the north where factories and mills were everywhere and staffed by non enslaved people. cotton united the two by the south growing it and the north turning it into textiles and other finished products. together they had quite a good system since each part was able to specialize