Complex sentence: Germany, under Kaiser Wilhelm II, attempts to purchase the U.S. acquisitions to compete with the British Empire; rebuffed, the Germans land troops on the southern shore of Long Island, New York.
Split into simpler sentences: Germany, under Kaiser Wilhelm II, attempts to purchase the U.S. acquisitions to compete with the British Empire. After the sale is refused, the Germans begin an invasion and land troops on the southern shore of Long Island, New York.