>"All warfare is based on deception"
Agreed:
Military deception (MILDEC) is an attempt by a military unit to gain an advantage during warfare by misleading adversary decision makers into taking actions detrimental to the adversary.[1][2] This is usually achieved by creating or amplifying an artificial fog of war via psychological operations, information warfare, visual deception, or other methods.[3] As a form of disinformation, it overlaps with psychological warfare.[4] Military deception is also closely connected to operations security (OPSEC) in that OPSEC attempts to conceal from the adversary critical information about an organization's capabilities, activities, limitations, and intentions, or provide a plausible alternate explanation for the details the adversary can observe, while deception reveals false information in an effort to mislead the adversary.
https://en.wikipedia.org/wiki/Military_deception
Functions of MILDEC include:
• Causing ambiguity, confusion, or misunderstanding in adversary perceptions of friendly critical information.
• Causing the adversary to misallocate personnel, fiscal, and material resources in ways that are advantageous to the friendly force.
• Causing the adversary to reveal strengths, dispositions, and future intentions.
• Conditioning the adversary to particular patterns of friendly behavior to induce adversary perceptions that can be exploited by the joint force.
• Causing the adversary to waste combat power with inappropriate or delayed actions.
https://jfsc.ndu.edu/portals/72/documents/jc2ios/additional_reading/1c3-jp_3-13-4_mildec.pdf