Of course Bush Administration were lying when they came up with the report saying Iraq had WMD's. As it was pretty obvious for everyone around the world that this is a big lie. But was a reason for them to enter Iraq.
United States is in Iraq for more than Oil, Oil was never their goal, it's very laughable to really think that States are there for the sake of Oil when they're throwing thousands of their soldiers down there.
Condaliza Rice and Bush's Administration have been always hinting that they're looking forward to change the political way in the middle east and the zone from the dictatorships such as Saddam, Gaddafi, Assad, Najad etc.
Iraq was their first stop knowing that they got everything there, from oil to the best geographically position, sorrounded by Syria and Iran to etc etc.
Reasons:
Reasons are simple If you look at United States policy[history] in the past.... Not to mention that they're world's strongest country, so it's pretty predictable, and any other country in the US place would be doing the same, meaning any country leading the world.
anyway back to my reasons, here they're IMO
-Any country not going in the same road with the United States is always their target.
Afghanistan vs Russia is an example. They can be with you anyday anytime, once they smell that you're looking for a change they eat you before you prepare your fork and knife.
-Controlling middle-east will advance them like no other.
-Dictatorships time is getting over, but slowly slowly they're putting them down... first one was Saddam, the next....Assad or Najjad? we'll see.
and so on... I could go on alot, but I promised myself not to really go off-topic.
I apologize anyway


..... maybe anytime soon we'll have a thread concerning this topic.