A false flag is generally an intentional attack made to look like someone else did it. Like wearing uniforms for the other side or
“That strikes me as one, as does pinning 9/11 on Saddam Hussein - both of which fooled people quite sufficiently.”
Which wasn’t what happened or how the public at the time perceived it. 9/11 was always pinned on Osama Bin Laden.
Saddam Hussein was accused of supporting terrorism (which he did, but mostly locally) and building WMD despite various sanctions (which he pretended to do, not expecting to be invaded)
People claimed 9/11 was a false flag created by the Bush government. But by now most of those nutjobs have melted away into obscurity in light of overwhelming physical evidence to the contrary and overwhelmingly obvious incompetence of the president allegedly planning it.