Clara Zetkin is a historical figure known for her role in the Franco-Prussian War, particularly advocating for women's involvement in peace movements. Although primarily recognized as a prominent socialist and feminist leader, Zetkin also aligned with the anti-war movement during the conflict in 1870-1871. Her efforts were aimed at mobilizing women to oppose war and advocate for workers' rights, which later influenced her involvement in international socialist movements and the establishment of International Women's Day in 1911.