What to look for before an Iran war :
Large force movement. That should be media covered, and carried on over a good span of time. USA can't run a war with a single carrier.
Large base. Be it in Saudi, Iraq or UAE.
Drumming up allies. Might be because "Iran has restarted Uranium refinement process." or something similar.
Or an attack on any US unit from Iran. Be it false flag or correct flag.
We shall know when the war drum starts.
But not today.