I think it's possible - perhaps even necessary - to find comedy in any war. I mean, look at the brilliant work which was done by Joseph Heller and Richard Hooker (M*A*S*H) and Jaroslav Hasek (The Good Soldier Svejk - which I haven't read, but have heard was funny).

The modern wars are also omnipresent in our electronic media - to be cynical about it, we now have 24 hours of non-stop bloodshed available to us. The internet and real-time media reporting were integrated into daily life in Iraq.

The careful choice of words, the scrubbing of language, the calculated images we presented to the external audiences - those were all major parts of my daily life over there. So, some of that is going to seep over into what I showed in the novel and - more importantly - how I showed it.

I think it's possible - perhaps even necessary - to find comedy in any war. I mean, look at the brilliant work which was done by Joseph Heller and Richard Hooker (M*A*S*H) and Jaroslav Hasek (The Good Soldier Svejk - which I haven't read, but have heard was funny).

With a profession such as investing, people see the 'doing' as the buying and selling. It is difficult to come home from work, and answer your spouse's question, 'what did you do today?' with 'well, I read a lot, and I talked a little.' If you're not buying or selling, you may feel you aren't doing anything.

Wars always evolve over time, don't they? Iraq/Afghanistan is different than Vietnam, and Vietnam was different than Korea, and Korea was different than World War One, and so on. Some things remain the same, of course - one side fighting another over ideology or a patch of ground - but there are some aspects of combat life which differ radically than their predecessors.

There is no more "front" and "rear" where Fobbit-types would go to hide out in safer locations. In Iraq and Afghanistan, you engaged in a theater of operations that's 360 degrees at all times.