In 1968, she traveled to Hanoi for an unofficial peace mission.
Amidst the Vietnam War in 1968, Muriel Rukeyser undertook an unofficial peace mission to Hanoi, demonstrating her commitment to anti-war activism and international solidarity. Her presence in Hanoi highlighted her stance against U.S. military interventions and reinforced her identity as a poet-activist willing to cross political and diplomatic boundaries. This act served to galvanize and inspire other literary figures to engage directly in pressing global issues concerning peace and justice.