Creve Coeur — Classrooms at Parkview School marched to a military vibe when the school invited members of the armed forces and civil service to speak Friday afternoon.A full school assembly at 2 p.m. in the school's gym kicked off "Operation ISAT," a schoolwide initiative encouraging students to remain responsible in their studies and honorable with each other, after veterans and current members of the military, law enforcement and fire personnel spoke in [...]