Subject
- Air raid precautions[remove]12
- Second World War (1939-1945)9
- Petroleum industry6
- Petroleum refineries4
- Civil defence3
- Oilfields3
- Evacuation of civilians2
- Italo-Ethiopian War (1935-1936)2
- Military demolition2
- Aerial bombardment1
- Arab nationalism1
- Censorship1
- Chemical weapons1
- Coup d'états1
- Emergency planning1
- Food supply1
- Heavy goods vehicles1
- Military aviation1
- Military recruitment1
- Sabotage1