Governments have agreements between them. Unfortunately, some of those are or were far from being the democratic representatives of their nations, and more than request defence for these nations, they were just requesting the defence of their status in power.
yep, that's true
world politics is a tricky business
and hindsight is 20/20
at no time have i claimed that everything my government does is perfect
sometimes deals are made in order to gain cooperation in other matters or from other parties which are unknown to the general public
sometimes the information at hand is faulty, sometimes well-intentioned people make mistakes
again, this doesn't mean we should immediately eliminate our military and step off the world stage
there are still valid reasons for projecting global power
people say they want to end wars, because wars are bad - and i totally agree
and i believe that the vast majority of people on earth agree with that
the problem is that there are, and will be, groups of people who do not share this point of view.
and sometimes the only way to keep THEM from waging war against others (or even against their own people) is to threaten them with force.
it's not the best way, or the only way. but if if other methods fail, it might have to be resorted to.
and when that happens, someone needs to be prepared to do it.