Question:  What could a spanish Coronel be addressed as in the commonwealth military?
SQL: SELECT "Commonwealth equivalent" FROM "1-1015521-2" WHERE "Rank in Spanish" = 'Coronel';

Question: Give me a list of all spanish officer titles that could receive recognition as Group Captain in english
SQL: SELECT "Rank in English" FROM "1-1015521-2" WHERE "Commonwealth equivalent" = 'Group Captain';

Question: If you are a Pilot Officer in the commonwealth then what will you called as in the US air force?
SQL: SELECT "US Air Force equivalent" FROM "1-1015521-2" WHERE "Commonwealth equivalent" = 'Pilot Officer';

Question: If you're a Major General in the US air force then what ranking will you receive in the commonwealth's air force?
SQL: SELECT "Commonwealth equivalent" FROM "1-1015521-2" WHERE "US Air Force equivalent" = 'Major General';

Question: If you get a ranking as Major in the  english military then what would the spanish military address you as? 
SQL: SELECT "Rank in Spanish" FROM "1-1015521-2" WHERE "Rank in English" = 'Major';