False. Just four of the 13 presidents in office between 1945 and 2020 -- Harry S. Truman, Lyndon B. Johnson, George H. W. Bush and George W. Bush – officially brought the country into new full-scale wars (Korea, Vietnam, the Persian Gulf, Afghanistan, Iraq). If we also consider other military interventions, Carter and Ford join Trump in not starting or escalating existing foreign conflicts with U.S. military involvement.