Complex sentence: The Force in Egypt was a British Army formation that was establish in August, 194 as part of the Egyptian Expeditionary Force (EEF), garrisoning armed forces in Egypt at the beginning of the First World War.
Split into simpler sentences: The Force in Egypt was a British Army formation that was part of the Egyptian Expeditionary Force (EEF) and was established August, 1914. Garrisoning armed forces in Egypt at the beginning of the First World War.