Take care of your warriors' health and provide them with fresh, quality provisions. If you do, you will have an army with high morale that will be ready to fight an enemy at any time. Conduct this Study to increase your army's health during a defense.
| Level | Rations | Planks | Marble | Tokens | Drafts | Time | Requirements | Increased Army Health During Defense | Power |
| 1 | 600 | 600 | 1K | 600 | 400 | 2w 1d 00h 00m 00s | 0 | 22M | |
| 2 | 820 | 820 | 1.4K | 820 | 565 | 2w 5d 12h 00m 00s | 1 | 22M | |
| 3 | 1.15K | 1.15K | 1.9K | 1.15K | 790 | 3w 4d 12h 00m 00s | 1 | 22.5M | |
| 4 | 1.65K | 1.65K | 2.7K | 1.65K | 1 150 | 5w 12h 00m 00s | 2 | 22.5M | |
| 5 | 2.35K | 2.35K | 3.95K | 2.35K | 1 600 | 7w 2d 12h 00m 00s | 2 | 22.5M | |
| 6 | 3.5K | 3.5K | 5.85K | 3.5K | 2 300 | 11w 12h 00m 00s | 3 | 23M | |
| 7 | 5.35K | 5.35K | 8.9K | 5.35K | 3 300 | 17w 2d 12h 00m 00s | 5 | 23M | |
| 8 | 8.3K | 8.3K | 14K | 8.3K | 4 750 | 28w 2d 00h 00m 00s | 7 | 23.5M | |
| 9 | 13.5K | 13.5K | 22K | 13.5K | 6 850 | 48w 00h 00m 00s | 10 | 23.5M | |
| 10 | 21.5K | 21.5K | 36K | 21.5K | 10 000 | 84w 6d 00h 00m 00s> 1 Year(s) | 14 | 24M | |
| 58.72K | 58.72K | 97.7K | 58.72K | 31.71K | 210w 4d 00h 00m 00s> 4 Year(s) | 14 | 228.5M |
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