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 table_1015521_2 ( commonwealth_equivalent VARCHAR, us_air_force_equivalent VARCHAR )

### Question ###
If you're a major general in the US air force then what ranking will you receive in the commonwealth's air force?

### Accurate SQL ###

SELECT commonwealth_equivalent FROM table_1015521_2 WHERE us_air_force_equivalent = "Major General"