Generally, the US/NATO-led interventions in the Balkans, most notably the US-led NATO-Serbia war, after explicit Congressional disapproval.
Though I suppose those could be excluded since they were interventions in existing conflicts.
Generally, the US/NATO-led interventions in the Balkans, most notably the US-led NATO-Serbia war, after explicit Congressional disapproval.
Though I suppose those could be excluded since they were interventions in existing conflicts.