[sunjieming]

According to NASA: If the debris is <600km the orbit decays within a few years. >800k can take centuries and geostationary objects on the high end (~36000km) can take thousands of years.

Most of the debris is in LEO so it could take decades to centuries for the debris to clear out

[ggm]

So the killer move would be to launch a fleet of sats above the debris field, and then launch self-destructive sats into the persisting space dense enough to make launch and persistence in that field hard.

Take command of the high space and make the low ground indefensible.

[anonfornoreason]

Just read a fiction book that had this as the premise in a war between china and the USA. China took the high orbits and blasted the low. Personally I thought it was a a very interesting twist!