Modern Tanks and Artillery 1945-Present (The World's Great Weapons)

I we very much looking forward to this new book being published. However, when it eventually arrived I was very disappointed with it. It was in fact not a new book at all but merely a combination of two existing ones by the same publisher. Why it had taken so longer to publish and why the fact that the content was previously available I do not know, if you do not have the previous versions I would recommend buying his one..