Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE pilot ( pilot_id number, pilot_name text, rank number, age number, nationality text, position text, join_year number, team text )
TABLE: CREATE TABLE aircraft ( aircraft_id number, order_year number, manufacturer text, model text, fleet_series text, powertrain text, fuel_propulsion text )
TABLE: CREATE TABLE pilot_record ( record_id number, pilot_id number, aircraft_id number, date text )

### Question ###
What are the different nationalities of pilots? Show each nationality and the number of pilots of each nationality.

### Accurate SQL ###

SELECT nationality, COUNT(*) FROM pilot GROUP BY nationality