Gideon and Midian

Judges 7:19-22 - Gideon and the 100 men with him reached the edge of the [Midianite] camp at the beginning of the middle watch, just after they had changed the guard. They blew their trumpets and broke the jars that were in their hands. The 3 companies blew the trumpets and smashed the jars. Grasping the torches in their left hands and holding in their right hands the trumpets they were to blow, they shouted, "A sword for the LORD and for Gideon!" While each man held his position around the camp, the Midianites all ran, crying out as they fled.

When the 300 trumpets sounded, the LORD caused the men throughout the camp to turn on each other with their swords.

I've always wondered how 300 men could surround an entire army -- one that was "thick as locusts" and whose "camels could no more be counted than the sand on the seashore." So I did the math.

If each company of 100 put just 10 yards between each man, and if each of the 3 companies put just 100 yards between them, they could make a circle with a circumference of 3300 yards. My math tells me that the area of that circle would be more than a half-mile square. That's about 6 or 7 city blocks square. You could fit a lot of soldiers and camels in that space. If Gideon's men put 15, 20, or more yards between them, the circle would grow significantly bigger and obviously a much larger army would fit inside.

I wonder what waking up in the middle of the night to the sound of 300 (enemy) trumpets is like. Is it like suddenly turning on the sound at a Spinal Tap concert (with all the knobs set to 11)?