| Military Technology 05/2021 | 1 |
| Editorial | 3 |
| Contents | 4 |
| Guest Editorial | 7 |
| Comment | 8 |
| Letter from America | 10 |
| Letter from Brussels | 12 |
| THEME: Land Warfare | 14 |
| Feature | 33 |
| Military Space | 39 |
| Feature | 57 |
| C4ISR Forum | 59 |
| From the Bridge | 65 |
| Special Feature | 70 |
| Homeland Security Forum | 83 |
| Industrial Focus | 85 |
| Rear Echelon | 90 |