Economically, better relationships lead to increased trade, reduced import and export fees and more free enterprise. Entrepreneurs can more easily scale businesses and expand globally.
It is also vital that both government and citizens of each country work together to educate each other and build international relationships. Many problems faced by one country are also problems in another. We can learn from following the lead of another country or by learning from their errors.
We can also join forces with other countries in a joint effort to solve issues. to prevent wars, provide disaster relief, solve famine, hunger and water shortages and conquer other world issues.
Our world is increasingly becoming a global world and each person a global citizen. Better relations between countries will foster this growth as the internet age makes working, living and playing internationally more possible.