Problems with どうすれば


どうすればこの地球から戦争を無くすことができるのだろうか。

First, I'm not sure on which level どうすれば stands in the hierarchy of the
sentence. I would say that it doesn't belong to この地球から戦争を無くすことが I would say
that it is on the top level of the sentence... "How to do/What to do, so
that..."

Second, I guess the subject of the part

> この地球から戦争を無くすことができる

can only be realized through the indefinite personal pronoun "one": "What to
do, so that one can remove war from this globe."

Third, I have problems in understanding how どうすれば and のだろうか work together
here. どうすれば asks for a method, while のだろうか shows that the speaker wonders
about X. のだろうか was just introduced in my textbook and the archetypal
examplephrases usually contained stuff like: "What might I have to do in order
to get that job". I hope this somehow reflects in english what I was taught in
german ^^ I'm german and I'm using a german textbook, so this was just a guess
on how to translate the example in my textbook into english ^^

Now concerning the sentence in question, I feel like I'm missing out on
something, because I feel like I have to drop one of the two to get a sentence
that still makes sense．

> "What to do so one might be able to remove war from this globe"

doesn't seem wrong to me, but I feel quite weary about it because it gives off
the impression that the speaker doesn't really believe into the feasibility of
this. This might be correct, but since this would be a very distinct meaning,
I'd rather have someone confirm that it's either right or wrong before I
believe into my understanding of this sentence^^




I'm not sure this is the answer what you want, but I hope It would be some
hint.

どうすればこの地球から戦争を無くすことができるのだろうか。

=> How we can accomplish the world there is no war.

どうすればこの地球から戦争を無くすことができるというのだろうか。

=> I doubt there are ways to prevent all wars in the world.

(These sentences are not literal translation.)

