How can a military strike on June 21st retroactively cause a "No" outcome for Polymarket markets that closed on June 19th and 20th?
Time is a finite resource, and it only moves forward; the market resolution for those earlier dates was determined by what (or what didn't) happen then.
It's like trying to pay an old bill with money you haven't earned yet, the liquidity simply wasn't there at the time.
If military action didn't happen on June 19th or 20th, the "No" resolution was already locked in, regardless of what unfolded later.
This is a fundamental misunderstanding of how market resolutions, or indeed, causality itself, function.