Examples: "I am not going to invade Ukraine". Then I declare that the bit of Ukraine I am going to invade is not Ukraine, thus all is as I said.
"This is just a military exercise in our border, it is just a coincidence that Ukraine is near", then the exercise becomes an attack.
"This is about the safety of Europe", and then I start a war in Europe.

I am sure you get the point. information provided by the now correctly called enemy, is not information.