what is the usefulness of we always are in  wars, when the earth are a small point in the big space ?
437019
There is never any usefulness in war . We must as people show those who insist that color lines must remain, are the cause of most wars
1159810
1) Practice.  If we are to go anywhere else, we need to learn how to handle the unfriendly environment.\n\n2) Unknown intangibles.  The original space program needed small, lightweight computers to take with them in space.  Now everyone reading this is using a small, lightweight computer, rather than using a terminal to tie into a large mainframe.\n\nA return to space, for long-duration missions, could (repeat, COULD) yield new recycling methods, or improved energy-efficiency, or localized energy production.\n\nOr it may produce nothing.  It's a gamble.  But compared to other gambles that we routinely make (research into more effective weapons, that may never be needed to be used, for example), it's a comparatively inexpensive one.
176705
More details would help.  But historically, geography has been important in war.  Hannibal taking his troops over the Alps to invade Rome, for example.  The WWII rescue at Dunkirk.  Decisions of where, how and when to attack are based upon geography.
1180333
All we have to do is survive long enough to expand into space. I think if we did that, it would be hard for anything to stamp out all the pockets of humans around. Especially if we could figure out how to not die as individuals.
700130
There are no Aliens that currently invade other worlds. It is not cost effective. If a race wanted to take over Earth, all they would have to do is adjust the orbits of a few (very few) asteroids so they smash into Earth, wait a few years and send in sanitation teams.  Over the centuries, your planet was a curious place to visit once or twice and was not considered very interesting . Sure, your wars showed us how undeveloped you are as a species.  Your infantile,(in cosmic terms) dependence on god concepts does not bode well for you and neither does your penchant to breed beyond your planet's ability to sustain you. We are now showing an interest in you because it is not often that we get to observe a species commit suicide. You are so close to maturing as a sentient species and it will be a shame to see you kill yourselves. There are just not enough of you becoming rational enough to force the issue. You let the least among you determine your fate, so be it.
888149
If Earth suppports life, the least you can do is support the earth!\n\nEarth the supporter of LIFE ... LIFE the supporter of YOU!
203606
No, wars will not end in our lifetimes.  Don't make the same mistake made by Karl Marx, in assuming that all human social activity is influenced by economics.  There will still be people in the world who want to conquer us solely because of our religion (or lack thereof), our culture, or just because they're idiots.\nKeep your (gun)powder dry.
395108
If you are a christian, you know that the bible tells us that there will never be peace on earth.  Wars are said to increase as the end of the world approaches.\n\nWorld peace may be a simple concept to us in america, because all we know is peace and prosperity, other people know nothing but war and violence.
202428
The same as the "purpose" of all wars--to produce peace...to end war. Sound pretty weird? I think that may be true. \nWar doesn't end war. It puts people's bodies in the ground.\nPeace is achieved by negotiation, respect and giving up the idea of making money from someone else's misery. Also, losing the egocentric idea that one country is entitled to what another country has or does.\nI think if you look closely enough you will see that most wars are either lining some-"one"s pockets or the result of rigid self-righteousness. \nCan we have peace? That's the million dollar question. Only if one to one we can get along. There's your mission in life.
262461
There won't be a war until we advance far enough technologically to be a threat to them. Then, they will probably wipe us out because they are well aware of the human tendancy to over take and kill weaker civilizations. Or, they might sanction Earth if we start to develop weapons that could potentially pose a threat.
704359
Klaatu from " The Day the Earth Stood Still "\n\n "The universe grows smaller every day and the threat of aggression by any group anywhere can no longer be tolerated. There must be security for all or no one is secure. Now this does not mean giving up any freedom, except the freedom to act irresponsibly. Your ancestors knew this when they made laws to govern themselves and hiredpolicemen to enforce them. We, of the other planets, have long accepted this principle. We have an organization for the mutual protection of all planets and for the complete elimination of aggression. The test of any such higher authority is, of course, the police force that supports it. For our policemen we created a race of robots. Their function is to patrol the planets in spaceships like this one and preserve the peace. In matters of aggression we have given them absolute power over us. This power cannot be revoked. A t the first signs of violence they act automatically against the aggressor. The penalty forprovoking their action is too terrible to risk. The result is we live in peace without arms or armies, secure in theknowledge that we are free from aggression and war, free to pursue more profitable enterprises. Now, we do not pretend to have achieved perfection, but we do have a system, and it works. I came here to give you these facts. It is no concern of ours how you run your own planet, but if you threaten to extend your violence, this Earth of yours will be reduced to a burned-out cinder. Your choice is simple: join us and live in peace, or pursue your present course and face obliteration. We shall be waiting for your answer. The decision rests with you."
154776
Wars will be of limited extent and not worldwide.
342454
Well, that's a complicated question and it's not possible to answer it in a paragraph. The US does have military presence in nearly every country on earth. Sometimes it's by our choice, and sometimes it's by the other country's choice. It's difficult to say whether it's good or bad because there are a variety of reasons we are in particular countries. For example, we are helping to protect South Korea from the North Korean government. But I think we have no legitimate reason to be in Iraq.
83493
No, that's why wars happen and massive epidemic viruses. Nature has its way of underpopulating, but if science continues keeping people that should die at their old stages from dying maybe someday we could get overpopulated. Therefore we should move to another planet...hehe
192578
During a war, the only thing that could help is that one dude try to stop it all. The technology just make it worse, make more peoples kiled... For instance, on of the bigest scientific dicovery for war was the atomic bomb, whitch one the sientist make for scare the dutch nazis. But what does it give? It was almost peace at the end of the 2nd world war, but after the explosion of the 2 american atomic bombs, the sovietics take occasion to start a new war and start to scare the world with their own atomics bombs... \n\nDuring a war, the only way to come to an evantual peace is By discutions and maybe by kicking somme ass! But the big technology will give only trouble, belive me...
832703
We have been here a long time.  Over the centuries, your planet was a curious place to visit once or twice and was not considered very interesting . Sure, your wars showed us how undeveloped you are as a species.  Your infantile,(in cosmic terms) dependence on god concepts does not bode well for you and neither does your penchant to breed beyond your planet's ability to sustain you. We are now showing an interest in you because it is not often that we get to observe a species commit suicide. You are so close to maturing as a sentient species and it will be a shame to see you kill yourselves. There are just not enough of you becoming rational enough to force the issue. You let the least among you determine your fate, so be it.
68529
There will always be war because people will always disagree.  Religion, politics etc....