Welsh at War is the culmination of twelve years of painstaking research by the author into the the Welsh men and infantry units who fought in the Great War. These units included the four regular regiments D the Royal Welsh Fusiliers, South Wales Borderers Welsh Regiment and Welsh Guards D as well as the Territorial Monmouthshire Regiment, the Yeomanry regiments, the Denbighshire Hussars, Pembroke Yeomanry, Montgomeryshire Yeomanry, Glamorgan Yeomanry and Welsh Horse Yeomanry and their amalgamation into service battalions for the regular regiments during 1917. Welsh troops fought with great courage in every theatre of the war D the Western Front, Aden, China, Gallipoli, Egypt, India, Italy, Salonika and in Palestine D and as well as the casualties who were suffered during these campaigns, many men gained recognition for acts of gallantry. The book covers all of the major actions and incidents in which each of the Welsh infantry regiments took part, as well as stories of Welsh airmen, Welshmen shot at dawn, Welsh rugby players who fell, Welsh gallantry winners and the Welshmen who died in non-Welsh units, such as the Dominion forces and other units of the British Armed Forces. While chronicling a history of the war through the events and battles that Welshmen took part in, the stories of individual casualties are included throughout, together with many compelling photographs of the men and their last resting places.