pine valley

…Air inversion layers are common over cities, especially cities located in low-lying “bowls” or in river valleys. Inversion layers trap dust, smoke, chemical agents, and other pollutants, reducing visibility and often creating a greenhouse effect…

…Target Penetration (Inches) Sandbags 20 Sand-filled cinder block 16 Pine logs 12 Armor plate 2 Table B-7. Penetration Capabilities of the HEDP Round (1) If projected into an interior room, the 40-mm HEDP…

…Range (meters) Pine Board (inches) Dry, Loose Sand (inches) Cinder Block (inches) Concrete (inches) 25 13 5 8 2 100 18 4.5 10 2 200 41 7 8 2 Table B-3. Penetration Capabilities of…

…Strip areas are built along roads or down valleys between towns and villages. They afford the defender the same advantages as villages. If effective fields of fire are available, a unit can occupy a few key…