They believe that labor from the colonies would be cheaper which would result in lower wages for the Americans working as colony labor is cheaper
The Second World War was started by Germany in an unprovoked attack on Poland. Britain and France declared war on Germany after Hitler had refused to abort his invasion of Poland.
The answer is t<span>he river is constantly changing </span>
If you want to shorten it it would be best to do WWII, how ever if it is a formal essay you should just spell it out.