The war in Afghanistan prompted large protests around the world, with the first large-scale demonstrations beginning in the days leading up to the war's official launch on October 7, 2001.
By the 10th anniversary of the U.S.-led war, there were 140,000 foreign military troops in Afghanistan, hundreds of billions of dollars expended, and at least 31,000 people in Afghanistan (civilians, insurgents, Afghan military forces, and others) killed by the war, along with approximately 2,750 foreign troops.
On September 29, 2001, as many as 20,000 people demonstrated in Washington, D.C., United States, denouncing the impending invasion of Afghanistan. The protests were organized by the recently formed A.N.S.W.E.R. coalition. Thousands gathered at Meridian Hill Park (Malcolm X Park) and marched downtown, while elsewhere members of the Anti-Capitalist Convergence clashed briefly with police on their way to Edward R. Murrow park, across from the headquarters of the World Bank and the IMF. Both groups of marchers converged on a rally at the Freedom Plaza.
In San Francisco almost 10,000 people converged on a park in San Francisco’s Mission District to denounce the Bush administration’s plans for military intervention in Afghanistan.
In Los Angeles roughly 2,500 protesters marched through the streets of Westwood.
In New York City 3,000 to 5,000 people took part in a peace march at Union Square.
In Barcelona, Spain, 5,000 people attended a rally and marched behind a banner that read: "No More Victims – For Peace." The protesters urged the Spanish government not to support any US military intervention or NATO retaliation.
On October 1, 2001, several thousand protesters demonstrated in New York City against any military offensive in response to the Sept. 11 terrorist attacks in New York and near Washington. Sporting buttons that said "Don't Turn Tragedy into War" and "Our Grief Is Not a Cry for War", many protesters argued that the attacks were not an act of war but a criminal act to be dealt with through the international justice system.