
1) Military strategy
Found on
https://www.crosswordclues.com/clue/tercio

(from the article `Italy`) ...in offensive as well as defensive maneuvers. In the fighting against France for the Kingdom of Naples, Fernández de Córdoba first developed the ... ...were innovators in the use of mercenary troops, cannonry, bastioned fortresses, and field fortification. French artillery was already the best ...
Found on
http://www.britannica.com/eb/a-z/t/26
No exact match found.