Tom Clancy's Rainbow Six 3

Rainbow responds to a series of terrorist attacks against U.S. interests in South America, apparently being conducted by terrorists sponsored by Saudi Arabia. However, the true mastermind behind the attacks is actually the newly elected President of Venezuela, Juan Crespo. Crespo managed to get elected by advocating a strong anti-terror platform and exploiting the fear caused by the rise in terrorist incidents (which he himself orchestrated). His plan is to discredit Saudi Arabia, then cut off the Venezuelan supply of oil to the United States, leading to a significant increase in the value of petroleum. He would then sell barrels of oil to the United States on the black market at highly inflated prices.
Rainbow prevents the Venezuelan President from carrying out his plans, ultimately assassinating Crespo himself. They subsequently arrange for the international media to credit the terrorists with causing his death.