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 party_host ( Party_ID int, Host_ID int, Is_Main_in_Charge bool )
TABLE: CREATE TABLE host ( Host_ID int, Name text, Nationality text, Age text )
TABLE: CREATE TABLE party ( Party_ID int, Party_Theme text, Location text, First_year text, Last_year text, Number_of_hosts int )

### Question ###
A bar chart about how many hosts does each nationality have? List the nationality and the count.

### Accurate SQL ###

SELECT Nationality, COUNT(*) FROM host GROUP BY Nationality