The Yale Coalition for Peace (YCP) is a 500-member student group at Yale University established after 9/11 to protest a U.S. military response to the al Qaeda attacks. YCP has held numerous protest rallies against not only the war in Iraq, but also the larger war on terror. "What happened September 11th was wrong," says YCP. "But revenge is not just. Revenge is not civil. And oppression is completely undemocratic."

Attempting to explain what may have motivated the 9/11 hijackers to carry out their deeds, YCP stated: "We urge a consideration of underlying political and economic causes [of the attacks], including an examination of past U.S. actions and foreign policy."

YCP is a member of the Yale Social Justice Network (SJN), a far-left coalition of peace and socialist organizations that fought to end sanctions against Iraq during Saddam Hussein's regime.

YCP has sponsored and participated in numerous protests against the Iraq War and the Bush administration. In January 2003, the coalition staged a "die-in" to protest the imminent U.S. invasion of Iraq. Two months later the group participated in a New Haven, Connecticut anti-war march that featured such slogans as: "Drop Bush, not bombs," and "Money for jobs and education! Not for war and occupation!" A few YCP members also attended a pro-war counter-demonstration the following day, and turned their backs to the flag while "God Bless America" was sung."  "As Martin Luther King said, I feel this country is the greatest purveyor of violence in the world right now," explained one YCP member. "I do not support our government's actions and therefore will not participate in a song that is obviously meant to support this government's actions."

Yale associate professor of genetics Mazin Qumsiyeh is affiliated with YCP. In May 2003 he disparagingly referred to the members of the Yale Friends of Israel organization as a "pro-war cabal." Qumsiyeh is a co-founder of New Haven's Al-Awda, the Palestinan Right to Return Coalition.