A US drone was shot down. No human life was lost. In my view, Trump made a courageous decision not to kill 150 people over one unmanned drone.
The media reported that the drone was shot down in international airspace, but I assumed from the start that it was shot down either over Iran's territorial waters, or over the part of the Strait of Hormuz where the legal status (international waters vs. Iran's territorial waters) is in dispute.