Well, on the “axis of resistance”, even if at some level there is a loose connection, with more coordination and given the existing technologies to communicate, at the same time Iran has been investing for years to arm these groups and to train them, to encourage them, and together to plan for situations exactly like the Houthis have been involved in since last November.
Even if there is not day-to-day operational planning involving both the Iranians and Houthis or Hamas fighters, this kind of planning has been done for years, and that includes the horrendous terrorist action by Hamas on October 7. Even if Iran was not directly involved in that particular day and that particular operation, for years Iran has sponsored Hamas and has helped them arm and train for this exact reason.