The protests against the Iraq war on February 15, 2003, represented one of the largest coordinated demonstrations in history, uniting millions from all walks of life in their opposition to a potential invasion of Iraq. Organized by various peace groups, labor unions, and civil society organizations, the demonstrations took place in over 600 cities around the world, including major urban centers such as New York, London, and Sydney. Activists were concerned about the legitimacy of the claims made by the United States government regarding Iraq's supposed weapons of mass destruction and the potential humanitarian consequences of war.

Supporters carried signs, chanted slogans, and participated in marches, creating a palpable atmosphere of solidarity and resolve. The protests were characterized by a diversity of participants, ranging from families with children to college students and elderly citizens, showcasing the widespread nature of the dissent. Notable figures, including activists and intellectuals, spoke at these events, calling for peaceful resolutions and increased diplomatic efforts instead of military action.

The protests also utilized various forms of media to amplify their messages, with many participants documenting the demonstrations through photography and social media. This helped spread awareness and fostered a sense of global interconnectedness among protesters, many of whom viewed the Iraq war as a violation of international law, further galvanizing their resolve to rally against military intervention.