Ummm...”marching” is figurative, and they’re going by boat?
It would take at least 4 troop carriers and 3-5 supply ships to move and equip that many troops. Iran doesn’t have that capacity. Did they get moved on Rusian ships? I don’t think so. A troop movement of that size would have been spotted going through the canal or docking in Syria.
You may be right but two questions arise...
Since the Iranian navy's largest ship is a frigate(5), are they going to hire a Carnival Line cruise ship?
What is the source of your information? It is not the posted article.