Complex sentence: Australian Light Horse were mounted troops with characteristics of both cavalry and mounted infantry, who served in the Second Boer War and World War I. During the inter-war years, a number of regiments were raised as part of Australia's part-time military force.
Split into simpler sentences: Australian Light Horse were mounted troops with characteristics of both cavalry and mounted infantry. They served in the Second Boer War and World War I. During the inter-war years, a number of regiments were raised as part of Australia's part-time military force.