That sounds like an odd combination, maybe an unworkable one. The Middle East and the Far East have little in common culturally or politically. Even when it comes to religion, Islam and Shintoism have no similarities. They're not important. Look at the economics of it instead.
Japan needs oil and Iraq's got it, and Iraq can certainly use the cash Japan has.
No, not quite. There's a snag we have to overcome. If the merger takes place, Japan will be the surviving power, and that puts Saddam Hussein out of a job. If it were just the man himself, his wife, his kids and their kids, it wouldn't be so bad. But he's bound to insist on bringing his extended family along, too.