To provide some perspective for what it's worth:
'The 2003 invasion of Iraq was the first stage of the Iraq War. The invasion phase began on 19 March 2003 (air) and 20 March 2003 (ground) and lasted just over one month, including 26 days of major combat operations, in which a combined force of troops from the United States, the United Kingdom, Australia and Poland invaded Iraq. The capital city of Baghdad was captured by Coalition forces on April 9, 2003 after the six day long Battle of Baghdad.'
I would also suspect that the more varied terrain b (i.e. not flat desert) and greater prevalence of urban infrastructure & environments situated within the operational theater, and also the likely higher proficiency level of Ukrainian forces & available armaments than the Iraqi army had at their disposal, should not be discounted in assessing the campaign thus far.
Cheers!