On 14 September 1874, less than a decade after the end of the US civil war, the former Confederate general James Longstreet was back in arms. This time, he was seeking to prevent an insurrection: a white supremacist bid to take over New Orleans.
Once seen by northerners as among the three most notorious Confederates – with his commander, Robert E Lee, and president, Jefferson Davis – Longstreet now led state militia and city police. His troops were Black and white, reflecting an unlikely commitment to post-war civil rights that would waver in later years. His complex life is the subject of a new biography, Longstreet: The Confederate General Who Defied the South, by Elizabeth R Varon, a history professor at the University of Virginia, currently the visiting Harmsworth professor of history at Oxford.