Complex sentence: During World War II, the Japanese invaded Malaya and the Straits Settlements by landing on Kelantan on 8 December 1941, and on 16 December Penang became the first Straits Settlement to fall into Japanese hands.
Split into simpler sentences: During World War II, the Japanese invaded Malaya and the Straits Settlements by landing on Kelantan on 8 December 1941. On 16 December Penang became the first Straits Settlement to fall into Japanese hands.