lakers
Kobe Bryant spent his chilhood in Italy, where his father Joe Bryant played professional basketball. I believe they don't have freshman, sophomore,junior, senior basketball teams in Europe. It is not as popular as in US. However, he came back to US his junior year and made Varsity team and took the team to the national finals game where they lost. He took his team to national finals again his senior year and won it that year. Lebron's story seems similar to Kobe's actually.
Wales national basketball team was created in 1956.
France national basketball team was created in 1933.
Madagascar national basketball team was created in 1963.
Croatia national basketball team was created in 1992.
Scotland national basketball team was created in 1947.
The Seattle SuperSonics won the 1978-1979 NBA finals.
UCLA won 11 National Titles.
Miami Heat
Saudi Arabia national basketball team was created in 1964.
England men's national basketball team was created in 1937.
1 - 1960, over Cincinnati; lost '61 and '62 finals to Cincinnati Backup guard on 1960 team was Robert Montgomery Knight