The different military units have different stats. I'll try to summarise them for you:
first 4 military units
Military Resource Requirements Table
| Military Unit | Resources to Train | Resources to Support | ||||
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| Spearmen | 10 | 10 | 5 | 1 | 1 | |
| Gielinor Warrior | 20 | 15 | 5 | 2 | 2 | |
| Archer |
20 |
10 | 5 | 3 | 3 | |
| Swordsmen | 20 | 20 | 3 | 2 | ||