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Combat Drills
The Combat Research Upgrade:  Combat Drills boosts the Infantry Attack Power of the players army.





Level Infantry Attack Boost
1 +1%
2 +3%
3 +7%
4 +13%
5 +21%
6 +31%
7 +46%
8 +66%
9 +91%
10 +131%

Requirements per level:

1.

2.

3. Level 4 Research lab / 15,000 Coin / 10,000 Lumber / 7,500 Metal / 10,000 Food.

Original research time: 6h 36m 0s

Instant reserch cost: 600 gold

4. Level 9 Research lab / 93,750 Coin / 40,000 Lumber / 30,000 Metal / 40,000 Food.

Original research time: 1d 7h 56m 38s

Instant reserch cost: 1,400 gold

5.

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10.

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