Its population has increased
These countries started off with disagreements and bad things happened, but the reason why they do Cooperate now is because the have a shared interest. For example when the United States and Russia had to join together despite the US not wanting to get involved because of Hitler. They all had to do the same thing which is set aside their differences and focus on what was going to help them both in the long run. Lastly, resources are also a huge component as to why they are buddies now. Every country relies on another country for a specific resource and once that resource is taken away they’ll have no where else to go, so they have to go back and forget their differences. Ie. the United States and Japan.
Was made to share information, ideas, and culture. Astronomical observatories ended up being built as well.
Osama Bin Laden was the man inchrage of Al-Qaeda