Arnold was active in the Conservative Party at Oxford and in 1954 along with undergraduates Michael Heseltine, Julian Critchley and Martin Morton canvassed workers at the gates of the Vickers Shipyard in Barrow-in-Furness[2] as part of the 1955 general election campaign.

[3] In 1958, he moved to Canada for five years and taught first at Pickering College and then at Ryerson Polytechnical Institute; during this period he was instrumental in setting up the Canadian University Service Overseas (CUSO).

In 1964, he travelled to Northern Rhodesia as an adviser to the leader of the United National Independence Party (UNIP), Kenneth Kaunda.

He lectured and taught courses on international affairs for over thirty years, at the Workers’ Educational Association[5] and the University of Surrey.

[6] While most government officials on both sides of the Atlantic have supported the Special Relationship between Britain and the United States, Arnold was a critic.