I think you are right that Spaight never wrote a book called the "Splendid Decision" - that was a phrase from his book, "Bombing Vindicated".
Here is Spaight's book online. You will notice the same paragraph you posted attributed to Spaight via McKilliam's article here on the index page. But if you go to Chapter III pg 74, as it says on the index page, you will not find that paragraph in Spaight's book.
Now, if we can dispense with your tendencies to quote neo-Nazi propaganda in defense of your terrorist apologetics perhaps you can answer a straight question about your own words.
Britain was attacked and already well into a war with Germany. Where is the equivalent situation for Al Quada to attack us on 9/11 as you claim?