I highly recommend the book “The Longest War” by Dilip Hiro. It provides very interesting and important insights into the Iran/Iraq war and, although published prior to the Iraqi invasion of Kuwait, reveals what was very likely Saddam Hussein’s true motive for doing so.
I've always found the Iran-Iraq War very fascinating since it essentially was fought using a combination of ground tactics from both World Wars coupled with modern technology.
In the air war, the use of SCUDs by both sides was reminiscent of Hitler's V-2 strikes on Antwerp and London, while the Iranian F-14A Tomcats wreaked havoc with the Iraqi Air Force.
Good reading and worthy of far more research and analysis than has previously been done.