Unwelcomed Air Show
It looks like they tried making a Taegukgi.
A closeup of the jets from the previous shot.
Here's them being significantly more conspicuous. I was on the phone with someone in Yeonhee-dong at the time and she was seeing a similar sight.
Please remember that these photos are all copyrighted to me. If you want to use them in any way, there's a 90 per cent chance I'll give you my permission, and be able to give you a copy with a higher DPI.Copyright Daehanmindecline 2018