After releasing a bioweapon virus, the next good move would be to infiltrate the target country's social media and ensure that there is a sufficient portion of the population that refuses to protect themselves from the bioweapon. Make them think it's "patriotic" to refuse to wear a "face diaper."
Remove your masks and breathe deeply, stupid Americans.
Then wait until the ones more likely to put up resistance gather in a public place, and have operatives criss-cross through the crowd spritzing Covid19 everywhere. (Or maybe the newer one they've been saving.) Done. Millions of American patriots and their families will become sick just when you prepare for your next move.
Change my mind.
Sure:
IF masks worked and removing them was an issue.
They do not. The only way is to wear a self-contained suit with its own air supply. Just like they do around real biohazards.
So basically they could do that, mask or no mask.
The mask just makes it easier to separate the sheeple from we the people.
Sure. By your argument the only valid way to enter a battlefield is if you're wearing a tank.