People wave Iranian flags as one of them holds up a poster of the late commander of the Iran's Revolutionary Guard expeditionary Quds Force, Gen. Qassem Soleimani, who was killed in a U.S. drone attack in 2020 in Iraq, during a ceremony commemorating his death anniversary at the Imam Khomeini grand mosque in Tehran, Iran, Thursday, Jan. 1, 2026. (AP Photo/Vahid Salemi)