Complex sentence: The 3,000-feet bitumen runway built by the Japanese during their occupation of these islands between 1942--45 was extended to 8,886 feet by the Indian Air Force (IAF) in 1967.
Split into simpler sentences: The 3,000-feet bitumen runway was built by the Japanese during their occupation of these islands between 1942--45. The runway was extended to 8,886 feet by the Indian Air Force (IAF) in 1967.