Fascinating chapter in "Bring The War Home": Returning Vietnam vets formed paramilitary Klan training camps. They then terrorized Vietnamese refugees in the TX Gulf because they were outperforming white fishermen. Anticommunist anti-Asian violence foreshadowing the present.
The book explains how a consequence of every generation of US wars is white supremacists returning from deployment w/ increasingly sophisticated paramilitary skills. Goes back as far as Civil War, but post-Vietnam is when the various strains of white extremism really coalesced
Another revelation is to read about David Duke's 70's-80's strategy to mainstream the Klan and make them appear reasonable. The Richard Spencer of his day. This country refuses to learn.