Battle of Britain 70th: The Few - The Battle of Britain Seventy Years On. Seventy years ago this year Britain faced the first very real threat of invasion since Napoleonic times. GAR is honoured that acknowledged expert on the Battle of Britain, Dilip Sarkar MBE FRHistS BA(Hons), has very kindly agreed to share some of the stories accrued during his many meetings with veterans of the Battle.