In the mid-1960s, there were five extreme-right groups operating in Britain, and Tyndall believed that they could achieve more if they united. To that end, "Spearhead" abandoned its open affiliation with neo-Nazism in 1966. That year, Tyndall issued a pamphlet titled "Six Principles of British Nationalism" which made no mention of neo-Nazism or Jewish conspiracies. It also dropped the insistence on armed takeovers present in his earlier thought, acknowledging the possibility that extreme-right nationalists could gain power through the British electoral process. Chesterton read the pamphlet and was impressed, entering into talks with Tyndall's GBM about a potential merger of their respective organisations. Independently, Chesterton had also been discussing the issue of a unification with Bean's BNP. This proved successful, as the LEL and BNP merged to form the National Front (NF) in 1967. According to Thurlow, the formation of the NF was "the most significant event on the radical right and fascist fringe of British politics" since the internment of the country's fascists during the Second World War.