The lie/excuse was that Iraq had chemical weapons. However, the real reason from the neocons was an attempt to establish a democracy that would spread more democracy through the Middle East and lead to a region friendly with the US. W. was probably persuadable because of Hussein's assassination plot against his father.

It just reduced carbon emissions, because I'm never driving again, knowing that thing is out there. Also: Is your name Hindi?

They were both plenty bad, being based on lies and being poorly executed, but the Russian one is worse. Russia is trying to destroy democracy in Ukraine. The US tried to inflict democracy on Iraq.