Complex sentence: During World War II, in 1943, the mission moved to Angurugu, as the RAAF required the use of the mission's airstrip: the ruins of the RAAF base are still evident today.
Split into simpler sentences: During World War II, in 1943, the mission moved to Angurugu, as the RAAF required the use of the mission's airstrip. The ruins of the RAAF base are still evident today.