Winston Churchill 
The World Crisis [PDF ebook] 
(Volume I of VI) (Illustrated Edition)

The World Crisis is Winston Churchill's account of the First World War, published in six volumes (technically five, as Volume III was published in two parts). Published between 1923 and 1931: in many respects it prefigures his better-known multivolume The Second World War. The World Crisis is analytical and, in some parts, a justification by Churchill of his role in the war. Churchill is reputed to have said about this work that it was "not history, but a contribution to history".
As first lord of the admiralty and minister for war and air, Churchill stood resolute at the center of international affairs. In this classic account, he dramatically details how the tides of despair and triumph flowed and ebbed as the political and military leaders of the time navigated the dangerous currents of world conflict.
Churchill vividly recounts the major campaigns that shaped the war: the furious attacks of the Marne, the naval maneuvers off Jutland, Verdun's “soul-stirring frenzy, ” and the surprising victory of Chemins des Dames. Here, too, he re-creates the dawn of modern warfare: the buzz of airplanes overhead, trench combat, artillery thunder, and the threat of chemical warfare. In Churchill's inimitable voice we hear how “the war to end all wars” instead gave birth to every war that would follow, including the current war in Iraq. Written with unprecedented flair and knowledge of the events, The World Crisis remains the single greatest history of World War I, essential reading for anyone who wishes to understand the twentieth century.
Although nominally starting in 1911 when Churchill became head of the Admiralty, the narrative commences in 1870 with the Franco-Prussian War and ends with Turkey and the Balkans. Churchill comments on German "threats of war" over recognition by Serbia of the Austrian annexation of Bosnia and Herzegovina in 1908, which led to talks between the British and French General Staffs over concerted action in the event of war. "Algericas was a milestone on the road to Armageddon." (pp. 32–33) Again over Agadir and the French in Morocco in 1911 Germany was "prepared to go to the very edge of the precipice", and was surprised by the British reaction (the Mansion House speech of Lloyd George).
The design and ordering of the British dreadnought fleet has a chapter, given his involvement. The start of the war in France is followed by the Admiralty and Fisher, and the naval battles of Coronel and the Falklands. The last chapter is on the bombardment of the English "open towns" of Hartlepool, Scarborough and Whitby by the German battle-cruiser squadron when nearly 500 civilians were killed; there was "much indignation at the failure of the Navy" but the Navy could not explain for fear of compromising our secret information".