concerning prussian militarism as one decisive factor for the development of "Germany" it started IMHO assumedly here: The Miracle of Brandenburg! Most luckily for the entire civilized world there was no comparable iterance 12 April 1945
On the theme of Nationalism - "Rule Britannia" from 1740. Could we have gone down the same road as Germany? In the 1930s there were many supporters of Hitler et al in England (don't know about the rest of the UK).
Tricia you are correct. Great Britain had many Hitler admirers and research certainly uncovers them. However on a trip to the Obersalzburg there were detailed accounts of the British influential types paying homage to Hitler at his Berghof. He always greeted his famous guests at the foot of the stone steps leading to his lair.....British royalty and a former British Prime Minister among those who travelled to Berchtesgaden to meet him and who gave him a favourable review.
The earliest such movements in Britain date from the 20s and were originally inspired by Italy and Mussolini not Germany and Hitler. For example the Loyalist League founded by Brig Gen Prescott-Decie which seems to have morphed into the National Fascisti. They tended to be very factional and splinter at the slightest excuse. Authors like P G Woodhouse took delight in poking fun at them hence his character Roderick Spode leader of the Black Shorts (all the shirt colours were taken). Never posed much of a real threat although could create riots and other trouble on the street. Mosely's Black Shirts the largest but already schisming after Munich and the Ribbentrop - Molotov pact knocked away their anti communist rationale and they faded away with the declaration of war. Ribbentrop greatly overestimated the amount of support amongst the British upper classes - his generous hospitality being more attractive than his politics. Like the ex Kaiser many of them considered Hitler a frightful little oik See for example Ian Thomas, The British Empire Union and the National Citizens’ Union,