My latest reading has been Balkan Breakthrough: The Battle of Dobro Pole 1918 by Richard Hall.
Dobro Pole is not likely to be on many WW1 battle lists. However, it should be as it was arguably one of the most decisive Entente victories of the war.
Dobro Pole was a key Bulgarian defensive position in Macedonia. By September 1918 the Macedonian front was largely held by Bulgarian forces following the withdrawal of German units to the Western Front. The Bulgarian army was poorly supplied and morale was low. The Entente forces saw an opportunity to achieve a breakthrough and launched an attack with Mainly French and Serbian troops. The attack was successful and the Bulgarian retreat turned into a rout with large numbers of troops heading for home. There were insufficient competent troops to mount a counter attack and reinforcing Austrian and German troops arrived too late. The defeat quickly led to the collapse of the entire front and Bulgaria's withdrawal from the war.
This book covers the background to the war in the Balkans and the campaign in the run up to the battle. The actual battle is covered in just a couple of chapters. The real value of this study is that it views the conflict from a Bulgarian perspective. This is a well written study of the battle that that led to the collapse of the Central Powers in the Balkans and hastened the end of the war.