I'm embarrassed I had to google Stennis! If the French had a carrier there too, that explains why they called the [French] ambassador [to Iran.] It had nothing to do with the 15, is that right?
E-2C 3, 4F, Aeronavale, RN Charles de Gaulle
The French had an exercise planned in the area for a while....but it does seem like a "coincidence" that a carrier that USN planes can operate off magically appears in the area during "tense times."