"A guerrilla leader, on the other hand, could match his wits against the enemy’s. If he was careful about gathering intelligence, perceptive in analyzing it, and knowledgeable about the tactics and strategy of guerrilla operations, he could do a great deal of damage to the enemy and at the same time minimize the risk to his own men."
January 1, 1970
https://en.wikiquote.org/wiki/Roger_Hilsman