The resolution of a Polymarket for June 19th and 20th as 'No' means simply that military action did not occur on those dates; a later event cannot retroactively make that true.
The outcome for those days was already determined by the absence of action within their specific timeframe.
Focusing on the June 21st strike as a trigger for earlier market resolutions introduces unnecessary noise and misrepresents the cause.
One must exercise restraint and acknowledge that controllable conditions define the outcome for a fixed period.
For example, my pasta recipe for yesterday didn't have tomatoes because I didn't buy them yesterday, not because I bought basil today.