In the next 4 to 6 years when you finally go to college I strongly suggest you take some (Inter)National Security courses and some history courses.
For one thing aside from the moral issues attacking civilian targets during WWII was never a particularly effective tactic. The reason Britain wasn't crushed by the Nazi's is that once they had air superiority the Nazi's switched to civilian targets. This allowed Britain to rebuild it's devastated military and simply fanned the flames of nationalistic pride.
When the tide turned and the allies started bombing civilian targets the same was true. Germany was able to hold out a lot longer because the reduction of pressure on it's military infrastructure.
If you are looking for a war won by the USA after WWII look no farther then the Gulf War. It accomplished everything necessary to safe guard the US's interests. Going any farther would have been against the US's interest and landed us in the mess we are in now. Keeping Iraq intact was also important because it's primary enemy was actually Iran.