North Korea accuses South Korea of flying drones to its capital and threatens to attack next time

Another provocation from SK.

Hardly. SK govt didn't do this. SK private citizens may have. Hard to know. Or it could be total bunk. Show the fliers or did Lil'Kim just get worried that someone, somewhere, was making fun of him again?

Or was it all in his head, yet again? Hard to tell.

As for balloons from SK to NK, you can thank China for that. Before China started their spy balloon flights over the western hemisphere without notifying any of the countries being overflown, hardly anyone bothered with balloons for anything other than weather data gathering. Also, cheap, large-enough, balloons are made in China and shipped around the world.

$249 Advertising Blimp 5M Flying Helium Balloon New 16Ft Free Logo Giant Inflatable

SpeedPAK Standard. International shipment of items may be subject to customs processing and additional charges. Located in: Shanghai, China

The same company sells 22ft ($450) and 26ft ($550) versions. Thank you China! These costs aren't so high that you or I couldn't buy them - probably one a month. I did some engineering calculations for the weight one of these blimps could carry. Max load is about 26kg. Add a small GPS "ping" set for every 10 minutes using a satellite link and it wouldn't be hard to know where this blimp is located. About 5000 sheets of standard 8.5x11 paper weigh 26kg. Split that 50/50 for paper to be dropped and control/tracking/release equipment, so 2500 sheets, each cut in half (don't need a full sheet) to be dropped. A satellite ping device is $125 retail and will send short messages and GPS location via satellite link from anywhere in the world. So, under for US$1000 and a little DIY, we can drop 5000 half-sheets of paper on a location 100 miles away too.

Also looked up the prevailing wind patterns of NK. Seems that in Spring and summer, the winds come from the South East. In autumn and winter, winds come from the north west. I doubt our cheap blimp will be able to drop any more paper on Pyongyang until next April.

Relatively inexpensive RC planes would lose radio control within about 10 miles. Any larger aircraft wouldn't be for a typical private citizen use.

There's a delivery option from Zipline that makes deliveries up to 120 miles away https://www.flyzipline.com/instant-delivery https://www.flyzipline.com/about/zipline-fact-sheet This is already deployed for medical package delivery in Africa to connect village facilities with a central pharmacy, but deliveries can only be 4-8 lbs (less than 4kg).

Gets me thinking.

Another provocation from SK.