1.) Sports can bring people bring together. Like help people of a nation communicate and help the nation become friendlier.
2.) Sports can bring in people of all nations. The nation could be place where tourists can come and explore and enjoy sports.
3.) Sports can help those participating in the sports from other countries experience what their nation has to offer. It can prove to be a great tourist spot or it could prove to be a great place to get new people to join the population in their nations.