This recent article asked the question about whether it's possible there could be a third World War.
On the face of it I think the question is a bit naive. Given the reality of human history I think the idea that 'we've advanced too far so that a 3rd WW isn't possible' is a sort of preference for our own age which both highlights the errors of past ages (ignoring their strengths) but the strengths of the present (ignoring our weaknesses). Having said that, the article does point out that there was at least one contemporary writer who, during the run up to the war, didn't think such a great war was possible because of European advancement. For all that he saw correctly He had, evidently, a blind spot, and perhaps it was that all too common blind spot all of us face sooner or later (if not repeatedly) that could be described as, "That'll never happen to me." As with all these things, it's often an enlarged sense of self and advancement that skews perspective, along with the always present inability to know exactly what it is that we do not know. In desiring to avoid or mitigate the worst scenarios prudence is a good partner to walk, although she never goes far without humility by her side.
Any way, all that to say that I think World Wars will always remain a possibility - although, no doubt, the probability differs at different times.
The other side to this that I wanted to bring up was one I had been thinking about prior to this article, following the recent UN probe bringing news out of North Korea. (Examples - Reuters / IBT / The Atlantic) Reading those pieces one thought came to mind and that was that if something like this escalated and lead to the WW2 of my generation, would I feel strongly enough about what was going on to leave my family behind and step up to fight - or what would be sufficient cause for me to do so? Obviously, that's one scenario and by itself it wouldn't mean WW3. Still, if, for whatever reason, resolving a scenario like that in NK required people like me to step up, having read those accounts, I believe I would have to do so. It was a scary thought, the idea of risking my life, and leaving my family without their dad, but honestly, if that were the cause before us, I don't know how I couldn't go and help put a stop to it.
Now, wars are rarely single-faceted affairs, let alone World Wars, so in any scenario there will be more to consider. One could reason that the reality is that this sort of thing goes on all the time around the world and so it isn't a special case. One might also reason that the only reason to volunteer for service in a World War is a real threat to one's own family or country. All of this, and more, bears consideration, especially in this age of information. For me, though, it heightens the need to ask the question - for what reason would/should I ever consider going to war?
What I want to ask is two things:
1 - Do you think a third World War is possible in our lifetime (how likely)?
2 - If such a war did occur, what scenario would be sufficient for you feel strongly enough to step and volunteer to fight?