I don't remember any time in human history when there has been complete peace. I guess the answer to OP's question is "never". Things are only going to get worse.......be prepared.
Only if we get intelligent leaders who aren't idiots and are really like Gandhi. Of course there should be more things like mentioned in this thread but I believe the above one is the most important.
As long as man walks the planet we will never have true peace in the world its inbuilt in the human race.
Peace in the world will exist when every living thing with a pulse is not there. In an episode of X files, mulder asked for peace or something like that and all life was taken away from what i remember. Its nothing to do with leaders, as in the universe, in existence (i believe) is a constant battle with energy, good energy, negative energy, and more or less all of us are still unable to control our thoughts and actions that would create more of a balance. A lot of our problem is the need to be in control, to control our own lives and control other people. Peace is impossible, its an unrealistic expectation, but a better balance is possible i believe. Its mostly not to do with words either, thoughts and within the mind is mostly where the problem is.
just visit link below then u know why peace is so hard, they fighting about everything, i don't know when will be the first war that cause of internet .. i think it arrived before peace ... http://forums.digitalpoint.com/forumdisplay.php?f=80
thank you guyz, your posts helped me a lot in writing an article. although it took long but better late than never. thank you all. keep posting!!
human will never stay in peace. they have a natural instinct of war built into them. someone has to reprogram the dna of humans to remove the feeling of war and hatred from them. then only there will be peace in world.