Answer:
sad and wishful tone
Step-by-step explanation:
This phrase found as part of the excerpt creates a sad and wishful tone. This is because the girl understands that the world can change drastically and be so much better than it currently is, yet because all the money is being spent on war it will most likely never happen. This causes a deep sadness as well as a sense of wishfulness/hope that it may one day become a reality and the world does become the wonderful place she knows it can be.