There's a commonly held view that Douglas Haig was a bone-headed, callous butcher, who through his incompetence as commander of the British Army in WWI, killed a generation of young men on the Somme and Passchendaele. On the other hand there are those who view Haig as a man who successfully struggled with appalling difficulties to produce an army which took the lead in defeating Germany in 1918.
Haig's Diaries, hitherto only previously available in bowdlerised form, give the C-in-C's view of Asquith and his successor Lloyd George, of whom he was highly critical. The diaries show him intriguing with the King vs. Lloyd George. Additional are his day by day accounts of the key battles of the war, not least the Somme campaign of 1916.