Both business and military have highly motivated, thinking, unpredictable “competitors”.
Businesses have competitors who are constantly seeking to capture greater market share. Competitors are innovative, clever, and sometime unscrupulous. Companies must be ready for the unexpected from their competitors.
The military has competitors too, so to speak, more accurately called “adversaries.” The military’s adversaries are quite passionate in their quest to cause grave harm. They’re also innovative, clever, and have no regard for rules, ethics, or morality. The military must be ready for the unexpected from their adversaries.