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_10335_1 (occupied_territory VARCHAR, operational VARCHAR)

### Question ###
what's the occupied territory with operational period of may 1940 – january 1945

### Accurate SQL ###

SELECT occupied_territory FROM table_10335_1 WHERE operational = "May 1940 – January 1945"