Final answer:
The United States disobeyed a veto by the Security Council during the 2003 Iraq invasion.
Step-by-step explanation:
In the context of the United Nations Security Council, there is an incident that matches the description provided in the question. It happened during the 2003 invasion of Iraq. The Security Council failed to pass a resolution authorizing military action, but the United States disregarded the veto and proceeded with the invasion. This resulted in a controversial and divisive war, with various consequences and ongoing debates.
Learn more about Security Council veto, United States, 2003 Iraq invasion