The motivational slogan of the American anti-war movement during the Vietnam War was "Make Love, Not War." This phrase encapsulated the countercultural sentiments of the 1960s and 1970s, promoting peace and love in response to the violence and destruction of war. The anti-war movement gained momentum as opposition to U.S. involvement in Vietnam grew, especially following events like the Tet Offensive and the My Lai Massacre, which revealed the brutal realities of the conflict. The slogan resonated with young activists and became emblematic of a broader rebellion against militarism, advocating for a peaceful and socially conscious alternative.