It would be a better world if the US and Russia jointly put an end to this global menace.
I don’t want to spill beans but i think there really needs to be an effort to work WITH Russia. Combined with them we CAN defeat Isis COMPLETELY.
I predict North Korea will eventually be divided into zones like Germany: Russia, China, US and South Korea will have their zones, while gradually it will be prepared for reunification with the South. In return the reunified Korea will be neutral and US forces will leave. I don’t think you could just automatically reunify with the South right away, because the people in the North have been so brainwashed over the years.