The natural order of things

PART 1

Every specie on this planet, left without a myriad of obstacles, would completely take over the planet as a scheme of survival of that specie. Some of this is done by randomness and some is done with intelligence driving it.
In the beginning, simple life forms emerged and devoured other simple life forms in order to survive. As time went by, some of these life forms became more sophisticated in order to speed up their overtaking of the planet. In doing so, there emerged a distinct hierarchy of life forms that (1) dominate, (2) support the dominant ones, and (3) that live off the discards of the other two. The dominant species become that way because of cooperation of the others, both inside and outside of their specie. Some species make bad choices in their path to survival and therefore become extinct.
Over time, millions of species have emerged and millions of species have disappeared. Throughout this process, as a specie becomes more sophisticated in its adaptability and survival techniques, it tends to speed up the time it takes in its quest to take over its original environment and eventually the entire planet. The faster a specie becomes dominant, we say the more deadly it is. Over the hundreds of millions of years since life (as we define it) first came into being, this process has continued right up to a specie developing into what we call MAN.
This specie, MAN, is the most sophisticated and deadliest of all life forms so far. In his short time on the planet, MAN has managed to become present and dominant in every corner of the earth. No other specie alters their environment or eliminates other species with the speed and accuracy of MAN. From the first emergence of MAN, he has develop ways to cooperate within his environment in order to dominate it. Eventually, this led to some MEN trying to dominate other MEN for reasons of survival and the original quest of taking over the planet.
Since every specie makes war in one way or another, it only makes sense that the most advanced specie would develop the most sophisticated wars.

PART 2

For MAN, wars are fought for many reasons, be they survival, economic, ideological or just for "the hell of it". Opportunities come up for one group of MEN to support another group at war without sacrificing anyone from their group. Today, some groups (usually countries) supply money and arms to other groups in a game known as "Let's you and him fight" (Eric Bern, Games People Play).
As we "fast forward" to the most recent century (1900 to 2000+) one of several groups playing this game is called the United States of America (or U.S., yes, us). By supplying money, arms and technology to other groups and countries, we have created power bases that could (and will) continue in their fight to a point where we are no longer their benefactor, but become their enemy. To see how this works, find the most needy family in your neighborhood. Give them food, tools, instructions, teach them how to live (by your standards) and $100/ week for two to three years. They will become your best friends as they become bigger, better and stronger. Now; stop all of this charity and you become their enemy. They may become so angry that they attack you and burn down your house or kill you. This is exactly what has brought us to the point that we're at today in the Middle East.
We supported Al Qeada in Afghanistan in its fight against the Russians as part of "the enemy of my enemy is my friend" philosophy. We gave money and arms to other Middle Eastern countries and trained their military. All of this was done under the facade of "bringing democracy" to that area. Well, from their ideology, they don't want democracy and we are now their enemy.

PART 3

Now that several countries have built up large armies, developed weapons of mass destruction and chosen specific enemies; a great world war is in the making. Most of you that are reading this will see this war come into existence on such a massive scale that your life and that of MAN may become extinct. You may think that this is a terrible thing to happen; but consider the fact that it is just a speeded up version of "survival of the fittest".
Over the span of MAN's history, great empires have grown, dominated and then fallen. From this history, we see that no single group, power, country or ideology can exist forever. It's not a matter of who the "good guys" are; it's a matter of the natural order of things.
For our specie to survive, wars must continue. If we ere in these wars and eliminate all of MANKIND, any specie that survives will then go on to war in the never ending struggle to dominate this planet.