There could be a war brewing in South America... and it's a conflict that has been a long time coming.You see, Guyana and Venezuela have been fighting a silent battle for centuries over a large territory that makes up two-thirds of Guyana - the Essequibo. During the late 1800s, Venezuela lost this territory to a treaty signed by the United Kingdom and the United States, and things seemed to end there.However, the recent discovery of oil deposits containing up to 700 million barrels of oil (wo...