Well, I don't think those really mean much. We're not talking about natural phenomena like comets streaking by or planets lining up or tectonic plate movement. Those things you have no control over and can somewhat be predicted (planetary movement can be very accurately predicted, of course)
Those great wars were the result of particular sets of world situations. Empires fighting each other, invasions and fighting for land and resources.
We're simply in a different era nowadays. Nowadays, resources from other lands are acquired through multinational companies and loan agencies like the IMF and World Bank. Speculation, penetrating markets, investing, these are the ways that power is gained nowadays.
Military threats are still there, of course, but it's much more subtle. And the big one, of course, is that there is only one country creating worldwide, military threats: the US.
Alternet came up with a great analysis of this today. Touches upon many of the things I've been saying:
What's the Role of American Empire in the New World Order?
http://www.alternet.org/visions/wha...orld-order?paging=off¤t_page=1#bookmark