Complex sentence: Throughout November, December, and early January, Lieutenant-General William Platt continued to apply constant pressure on the Italians all along the border with the Sudan by continually patrolling and raiding with both his ground troops and his air force.
Split into simpler sentences: Throughout November, December, and early January, Lieutenant-General William Platt continued to apply constant pressure on the Italians all along the border with the Sudan. He applied this pressure by continuous patrolling and raiding with both his ground troops and his air force.