What was 9/11 if not military actions on USA own soils? Like, sure it can be labelled terrorism rather than "conventional military intervention", but psyops apart, on practical level that’s typical asymmetric/guerrilla warfare.
It is USA did not respond with any military force. The response, if any, was behind closed doors and we may never know the details. The only thing we know is that relationships with the Saudis are closer than ever. Journalists aren't even allowed to question why they chop up their regime critics in small pieces and put them in a box because that is considered "impolite".
The public response was largely within domestic policy. New laws, new government agencies, more money spent on the military. It was also alluded to when fighting the continuation war with Iraq, but nothing was ever said explicitly about that.
that's a surprising thing to hear. where do you draw the line between terrorism and war? I see a distinction without much of a difference.
If you say "Deus Vult", you are a war hero. If you say "Inshallah", you are a radical terrorist.
The rules are quite simple.
It's wild to suggest that terrorism against the US should not be responded with by military action - it's only the degree and targets that should be under debate.