Drill Army

Advance tree

1. Professional Armies
2. Organized Recruitment
3. Drill Army
4. Armory then 25 more
5. Ezo Kanrei Only some countries
6. The National Arsenal Only some countries
7. Arabian Horses Only some countries
8. War Elephants Only some countries
9. Dream of Masakado Only some countries
10. Ionian Sea-Wall Only some countries
11. The Bastion of Mangup Only some countries
12. Knights of the Empire Only some countries
13. Emerging Clan Only some countries
14. Recruit the Peasantry Only some countries
15. Resistance Against Invasions Only some countries