The 205th (2nd Welsh Border) Brigade was a formation of the British Army during the First World War. It was raised as a second line brigade, part of the 68th (2nd Welsh) Division, from those men in the Territorial Force who had not agreed to serve overseas. The second line infantry battalions had a minimum strength of 600 men.
Formation
References
205th (2nd Welsh Border) Brigade Wikipedia(Text) CC BY-SA