The answer is to prevent a British invasion from the north because it would have been very easy for Britan to destroy them because they were weak in the north.
Answer:
The President of the United States is the head of the executive branch.
Explanation:
The President gets help from the Vice President, department heads (called Cabinet members), and heads of independent agencies.
Australia underwent a population boom because:
Australia was under the British 'empire' during the time. When the British prisons became overcrowded, many of them were shipped to Australia to live there. This increased the amount of people living in Australia exponentially, and eventually cities were founded
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The collapse of communism greatly affect the European Union in that many of the countries that had been under control of communist Russia were new free to forge their own economic path, and many of them applied to join the European Union in order to guard their well-being after 1993.