THE OPPOSITION With Passion and a Dash of Pink, Women Protest War. Several thousand demonstrators, organized by Code Pink, a predominantly female anti-war movement, marched to the White House today to protest a possible war against Iraq. By THE NEW YORK TIMES ASHINGTON, March 8 — Several thousand protesters, most of them women, rallied near the White House today to protest the Bush administration's policy on Iraq. About 25 people were arrested, the authorities and the demonstration's organizers said. The protesters, many wearing pink as a symbol of opposition among women to a war, carried placards and sang and chanted slogans in a low-key demonstration organized by a group called Code Pink, a play on the national color-coded security alert system. Most of the protesters listened to speeches at a rally some distance from the White House, with relatively few making the march to President Bush's residence. Among the protesters were family members of victims from the Sept. 11 attacks, along with some relatives of military members who have gone overseas in preparation for a possible war. The police did not immediately name those who were arrested. Andrea Buffa, an organizer of the march, said that among those arrested were several well-known writers, including Alice Walker, Terry Tempest Williams, Maxine Hong Kingston and Susan Griffin, as well as Amy Goodman, a host on Pacifica Radio. The protest was linked to International Women's Day, an annual commemoration of women's rights, and was one of many events held today around the nation and world to denounce the prospect of a war in Iraq. As they approached the White House, the demonstrators were heckled by counterdemonstrators, including some who supported the administration's policy of ousting the government of Saddam Hussein and others there to voice opposition to abortion. The arrests took place on the stretch of Pennsylvania Avenue that runs in front of the White House, which has been closed to traffic for several years and is a common venue for protests. The United States Park Police, which controls permits for protests in the park across the street from the White House, said that those arrested had violated restrictions on using the sidewalk, and that they were likely to be released quickly.