When did Operation Iraqi Freedom begin?

Operation Iraqi Freedom began on March 19, 2003. This military operation was initiated as part of the U.S.-led invasion of Iraq, aimed at toppling the regime of Saddam Hussein. The start date is significant as it marked the beginning of a major conflict that would have vast implications for both Iraq and international relations in the following years.

The other dates provided pertain to different historical events. September 11, 2001, is known for the terrorist attacks on the United States, which led to a significant shift in U.S. foreign policy and military engagements. August 27, 1992, is associated with political and military actions in the Gulf War context. November 20, 1995, relates to various geopolitical developments but is not connected to the events in Iraq. Therefore, B is the correct choice as it accurately reflects the onset of Operation Iraqi Freedom.