The UN doesn't have to become a monarchy or a second EU.
But its power to prevent wars is very limited. Strengthening that power alone would be worthwhile.
I am skeptical that the UN (or any world government) can become strong enough to directly intervene in wars without becoming, itself, involved in the creation or furtherance of wars. Do you have something specific in mind? Generally "strengthening" the UN's power is too vague. Power given to a governing body must have suitable established checks and balances. There is no carte blanche worth discussing.[/QUOTE]
I guess there were sceptics before Bismark if Germany could be united. And there were a lot of sceptics about a functioning EU. (And some might have thought it impossible to have settlements bigger than a usual tribe.)
The UN could be strengthened without changing the UN. The members could, by themselves, declare wars of aggression illegal and relegate the decision to send troops outside the own country to a UN resolution (as some have already done).
The UN could drop the veto and declare warring parties as not fit for trade and members would stop all trade by agreeing to such measures.
There are possibilities that would transfer minimal amounts of power to the UN without it becoming too strong. And it would make the world a safer place.[/QUOTE]
The powers that the UN already has... the UN already has... so I guess you mean the veto power?
I think that the veto power that certain nations have has to do with their status as world leaders. If you took away their veto powers, they might very well not consider remaining in the UN at all. In other words, any arrangement of world powers has to be reasonable to the relative capacities of the nations. That said, the veto power could be revisited if there exists a better arrangement to reflect the relative strengths of nations. Keep in mind that there are a wide variety of nations, from small island nations to vast and highly populated nations, from economically poor to economically prosperous. It is not at all so simple as giving each "nation" of the world the same say in international affairs. Such an arrangement would be intolerable to the most powerful nations of the world.
As for "transferring minimal amounts of power" there really isn't such a thing as that that makes sense solely for the purpose of strengthening a centralized government. Any Power Exchange no matter how minimal must come with corresponding checks and balances. It is never sufficient to transfer power simply because of its potential to do good, because any power is capable of doing good or evil depending on how it is wielded. Dropping the veto powers of the major nations of the world is certainly not a minimal exchange of power. It is a major exchange of power, and, therefore, requires major justification.