Throughout U.S. history, there has always remained a correlation between the aftermath of conflict and vigilante and revolutionary violence connected to the White Supremacist movement. Surges of Ku Klux Klan membership align more closely with veterans of combat and the aftermath of war than they do with anti-immigration, populism, economic hardship, or any of the other political factors experts have traditionally relied upon to explain sudden spikes of membership affiliation. White supremacist activity always have a direct link to post war periods, including notable individuals such as George Lincoln Rockwell who was a World War II veteran and founder of the American Nazi Party, Richard Butler who was also a World War II veteran and founder of the Aryan Nations, Louis Beam who was a Vietnam War veteran and Grand Dragon of the Klux Klux Klan, and Timothy McVeigh who was a Gulf War Veteran and responsible for the Oklahoma City bombing of 1995