Description
Enhances Infantry Defense
Defensive Formation IV
Requirements
| Level | Prerequisites | Research Cost | Time | Bonus | Power |
|---|---|---|---|---|---|
| 1 |
Research Center 19 Reprisal Tactics IV 1 |
 930 000  930 000  180 000  46 000  12 000 |
16:40:00 |
Infantry Defense: 4.00% |
18000 |
| 2 |
Research Center 20 |
1 100 000 1 100 000 220 000 55 000 14 000 |
21:40:00 |
Infantry Defense: 4.00% |
180000 |
| 3 |
Research Center 21 |
1 300 000 1 300 000 260 000 65 000 16 000 |
1d 09:20:00 |
Infantry Defense: 4.00% |
18000 |
| 4 |
Research Center 22 |
1 600 000 1 600 000 330 000 83 000 21 000 |
2d 02:00:00 |
Infantry Defense: 4.00% |
18000 |
| 5 |
Research Center 23 |
3 400 000 3 400 000 680 000 170 000 44 000 |
5d 05:00:00 |
Infantry Defense: 6.50% |
29250 |
