politics
Iran replaces top security official at crucial moment in talks over Strait of Hormuz
Mohsen Rezaei appointed head of Supreme National Security Council after Mohammad Bagher Zolghadr steps down

TL;DR
- Mohsen Rezaei appointed head of Supreme National Security Council.
- Mohammad Bagher Zolghadr has stepped down from the position.
- The appointment occurs during crucial talks regarding the Strait of Hormuz.