Long before you have a liberal democracy, you have to have a functioning state (something that never disappeared in Germany or Japan after they were defeated in World War II). This is something that cannot be taken for granted in countries like Iraq.
早在建立自由民主社会之前必需要有可以运转的国家(德国和日本在二战中战败后并没有丧失)。这在像伊拉克那样的国家是不能想当然就有的东西。