The British Empire had plenty of different colonies and countries to call on. The Scottish had plenty of regiments during The Great War. The Black Watch, Royal Scot Fusiliers and the Gordon Highlanders to name a few.
Junior Officers were leaders of the platoon in the British Army, and the cornerstone of the command structure.
Equipped with a Lewis Gun. This member would be a prime target for the enemy.
Joining the PALS battalions was a great way to serve your friends and family
The British army was more of a colonial police force than a European army.
NCO kept the discipline in the ranks. They also kept the Platoon Commander out of problems.