
It's only balloons. 1,500,000 balloons...
Actually, that link is really clickbaity. Sorry.
Try this one instead:
www.youtube.com/watch?v=n0CT8zrw6lw
( , Sat 14 Nov 2020, 20:54, Reply)

I think the main video is probably better. Sure, the it's a bit over-verbose but the second one was so artistic that it left a good chunk of the context out.
( , Sun 15 Nov 2020, 15:54, Reply)

was hard to choose TBH.
Once I posted, I saw there were many videos on the topic so I am sure it is GC in some way or other.
( , Sun 15 Nov 2020, 16:30, Reply)

Well they could be picked on on radar by the Warsaw Pact and mistakenly confused with hostile NATO aircraft or missiles leading to an exchange of ICBMs and nuclear armageddon.
( , Sun 15 Nov 2020, 17:14, Reply)