The principle is this: Maximize the amount of information you gain, and minimize the amount of information your opponent does.
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Actions bring information. Speeding up your actions also speeds up your information gain, and vice versa for your opponent.
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Disrupt your opponent's information-processing systems. Specifically: confuse them with contradictions, overwhelm them, divide them, and move faster than their OODA loop can follow.
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Ensure your information-processing systems are resilient and robust to disruption.
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Attack when your enemy is in the dark, is doubting, is hesitating.
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Manipulate your enemy's attention. Use sleight of hand or shock and awe.
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Ensure that every move the enemy makes leaks information to you.
Examples to consider: Blitzkrieg (see Col. John Boyd's presentations), Enigma machine, Operation Bodyguard, 2016 election (see Dominic Cummings' talk), most interesting historical battles (e.g. the Battle of Cannae), small-scale infantry tactics.