| # | Concept | Culture | Statement | Freq. |
|---|---|---|---|---|
| 1 | blitzkrieg | Europe | Strategy used by German military in World War II, characterized by quick and coordinated attacks | 1 |
| 2 | performing air defense | Eastern Europe | Performing air defense is an integral part of military strategy, with a strong focus on anti-aircraft artillery and surface-to-air missile systems. | 1 |
| 3 | supermarine spitfire | Europe | Legendary World War II fighter plane, symbol of British resilience and innovation. | 1 |