A while back, I read something about a military leader who was moving his men through an area that he knew the enemy was observing. He did not have enough men and knew he was outnumbered. He marched his men in a giant circle to make it appear as though he had hundreds of men when in actuality he only had several dozen. The enemy chose not to attack because they felt outnumbered.
It may not be exactly that, but I thought about it a little bit ago and I'd like to read more about it. I've tried googling it but I'm not even coming close to the right answer.
Thanks.
General Sir Isaac Brock did it to Fort Detroit in the War of 1812. He had Tecumseh's First Nations forces pass in front of the fort a bunch of times, which caused General Hull to think he faced a massive force of Natives and British, and so he surrendered the fort almost immediately upon receipt of a letter from Brock saying he'd let the First Nations forces loose on the fort.
Here you go, from last Tuesday's Tuesday Trivia feature, Confederate General John B. Magruder.