A rather surprising way of making an impact.

An essay on 'The first intelligence prime minister: David Lloyd George (1916-1922)'; who dealt with the 'Great War' (WW1) and a few 'small wars', notably Ireland:http://www.cabinetoffice.gov.uk/site...orge-as-PM.pdf

The essay ends:
Yet the way in which Lloyd George used intelligence was—like later prime ministers—a reflection of his own personal style and personality. Lloyd George approached intelligence in the same way that he
approached everything else—with a keen eye for politics. Lloyd George was not as interested in intelligence as have been other prime ministers, nor did he often use intelligence particularly well. Certainly Churchill outranks Lloyd George in both respects. Yet, unlike any of his predecessors, intelligence formed an important part of Lloyd George’s premiership. For that reason, he rightfully earns the distinction of called being Britain’s first intelligence Prime Minister.
An explanation for the essay:
In 2012, as part of a competition, post graduate students were invited to submit an article under the heading Prime Ministers and their use of intelligence. The following article was originally intended for a wide popular audience rather than being written as a scholarly piece. In the event it was decided not to go forward with the competition and the article is reproduced here.

Daniel Larsen is a Junior Research Fellow-Elect at Trinity College, Cambridge, 2013-2017. He is currently completing his PhD at Christ's College, Cambridge, and has a number of articles published or forthcoming in scholarly journals, including Intelligence and National Security, the International History Review, and Diplomatic History. His primary research interests are in the foreign polices of the United Kingdom and the United States in the early twentieth century, with a special focus on the role intelligence.