What is a foreign national?

Okay, here's some sample information about a fictional foreign national, presented in Markdown format with linked important subjects:

Name: Anya Petrova

Nationality: Russian

Occupation: Ballet%20Dancer with the Bolshoi Ballet before relocating.

Visa Status: Currently holding an O-1%20Visa for individuals with extraordinary ability or achievement.

Current Location: Residing in New%20York%20City, USA.

Family: Parents and siblings still residing in Moscow.

Languages: Fluent in Russian and English.