>>80
Something that poses an existential threat to all of mankind. For example- if our ozone is paper thin and the rest of the world has committed itself to never using oil again and so on and let's just say CHINA is still doing nuclear tests and letting high emissions into the atomsphere- then we go to war. And try and demantle their infrastructure if diplomacy doesn't work.
If someone is planning to take over the whole world, no matter WHO it is or WHAT system of government they use- then we go to war. If there's mass genocide (racial, religions, any reason), then we go to war.
We do not go to war to spread our system governments, we do not go to war to cover our asses economically, we don't go to war because we need to protect our natural resources-interests. These are bullshit reasons to go to war.
I mean come on, they should be pretty obvious. And even WHEN we go to war we should weild our power with wisdom, patience, restraint and be able to treat our enemies with some fucking dignity- instead of resorting to petty racism, propgandist smear tactices, critiques of their culture and society, etc etc etc. Things, I might add, that we frequently accuse the enemy of to this very day.
And to conclude this, there are realistically in an 'adult world' there are Very, VERY few instances where war or the inklings of war were even nessacary, history tells us this over and over and over. Isn't it about time we looked at things differently?