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_name_21 (secondary_military_speciality VARCHAR, real_name VARCHAR)

### Question ###
What is Gareth Morgan's Secondary Military Specialty?

### Accurate SQL ###

SELECT secondary_military_speciality FROM table_name_21 WHERE real_name = "gareth morgan"