Complex sentence: During the First World War, an Army Remount Service depot was located near Shirehampton, and Avonmouth Dock Joint handled 35,000 animals, mainly horses and mules, en route to the depot.
Split into simpler sentences: During the First World War, an Army Remount Service depot was located near Shirehampton. Ove the course of the war, Avonmouth Dock Joint handled 35,000 animals, mainly horses and mules, en route to the depot.