Many of the major demonstrations of the 21st century involved opposition to the wars in Iraq and Afghanistan. On October 26, 2002, more than 100,000 people gathered in Washington D.C. to protest what they felt was an impending war with Iraq.
Another major protest against the involvement of American troops in Iraq occurred in September 2005 when an estimated crowd of between 100,000 and 300,000 marched past the White House in opposition to the war. Other protest marches have focused on social issues, namely abortion rights and immigration reform. The March for Women's Lives, a mobilization of activists from around the globe advocating for women's access to abortion, occurred in Washington on April 25, 2004; the local police estimated that between 500,000 and 800,000 people participated. The March for America, the 2010 rally in support of comprehensive immigration reform, drew some 200,000 people to Washington D.C.