My answer to What will the future structure of the world be like, now that both the US and UK are withdrawing?
Answer by Ken Larson:
As long as international organizations like NATO, the UN, the World Health Organization and the International Monetary Fund continue, we will have counter balances to initiatives taken by any country that has warlike economic or geopolitical intentions.
In addition the world economy is so wired that we are joined at the hip in many respects. The Great Recession had ripple effects all over the world and proved that isolationism is impossible in today. Countries like North Korea are obviously not hacking it.
The world will realize it is far better building bridges than building walls and military victory is dead.