According to this Washington Post column by Paul Roberts, the Gulf War and the War in Iraq were just the beginning. Roberts' writes, "We are on the cusp of a new kind of war -- between those who have enough energy and those who do not but are increasingly willing to go out and get it. While nations have always competed for oil, it seems more and more likely that the race for a piece of the last big reserves of oil and natural gas will be the dominant geopolitical theme of the 21st century.
Already we can see the outlines. China and Japan are scrapping over Siberia. In the Caspian Sea region, European, Russian, Chinese and American governments and oil companies are battling for a stake in the big oil fields of Kazakhstan and Azerbaijan. In Africa, the United States is building a network of military bases and diplomatic missions whose main goal is to protect American access to oilfields in volatile places such as Nigeria, Cameroon, Chad and tiny Sao Tome -- and, as important, to deny that access to China and other thirsty superpowers."