Here is the details on what happened with Drone-gate a few days ago:
The inspection revealed that a working-level soldier with the 1st Corps had received a text message from the U.S. military notifying the unit of its drone flight plan and firing altitude the day before the exercise.
The U.S. military had also attached an image of its written advance notification, which included the expected flight altitude, suggesting the Korean soldier likely overlooked the detail and failed to report it up the chain of command, assuming the drone would fly within the altitude range governed by the Army Ground Operations Command.
In fact, the drone flew higher than expected, at an altitude that would have required prior notification to and approval from the South Korean Air Force.
Upon spotting the drone, the South Korean military had briefly activated Durumi, a military alert system issued in the event of an enemy drone incursion.
The JCS official’s remarks indicated that the customary practice of allowing an advance notice to be put through text messages may have led to such procedural shortcomings from both sides.
You can read more at the link, but I am surprised that official business like this is being conducted over text messages. It appears that is going to end due to this investigation.






