SELECT T1.Country_name FROM country AS T1 JOIN match_season AS T2 ON T1.Country_id = T2.Country WHERE T2.Position = "Forward" INTERSECT SELECT T1.Country_name FROM country AS T1 JOIN match_season AS T2 ON T1.Country_id = T2.Country WHERE T2.Position = "Defender"
Apa nama negara yang memiliki kedua pemain dengan posisi maju dan pemain dengan posisi bek?
CREATE TABLE country (Country_name VARCHAR, Country_id VARCHAR); CREATE TABLE match_season (Country VARCHAR, Position VARCHAR)