Mostly, ultimately, they are wars waged on innocent/peaceful people.
Though the third point may be too gracious: I’m not sure I’d call those consequences “accidental” when the risks to innocents are calculated beforehand and deemed acceptable collateral damage. Truly: most who suffer are innocent. A full 25% of people in jail - not just among drug-related offenses, but overall - are there for non-violent drug possession - which is a higher percentage than those who committed violent drug-related crimes. And for every terrorist killed by drones, 50 civilians are killed. Fifty-to-one. How can it be an “accident” when it’s the most typical outcome?