You mean controlling the narrative? This was first introduced in Iraq. The unethical nature of it is the reason media houses now have to mention it.
That Iraq war exposed a lot of ugly practices by govts.
That's not what I meant. Journos can report what they want -- they just can't walk around outside of the protection of the military or broadcast locations, faces, etc. Things that would endanger the lives of those protecting them or the mission. Its a very basic requirement that everyone agrees to adhere to since using the military to report from within a war zone is a privilege not a right. Journos often add the caveat of something like "we were only allowed to film in certain areas and had to have our footage screened before broadcasting" as a heads up to audiences. Its a basic, common sense guideline that most journos are completely fine with given the alternative of not having any access to the battlefield.