Complex sentence: Newly raised in August 1914,1/1st Welsh Horse was from early 1915, attached to the North Midland Mounted Brigade of the 1st Mounted Division they were later transferred to the Eastern Mounted Brigade in the same Division.
Split into simpler sentences: Newly raised in August 1914,1/1st Welsh Horse was from early 1915 attached to the North Midland Mounted Brigade of the 1st Mounted Division. It was later transferred to the Eastern Mounted Brigade in the same Division.