Complex sentence: Alternatively, three general-purpose bombs--one under each wing and one under the fuselage--or twelve fragmentation bombs--six under each wing--could be carried; this was often used when attacking Japanese targets on the Gilbert and Marshall Islands in 1942.
Split into simpler sentences: Alternatively, three general-purpose bombs: one under each wing and one under the fuselage, or 12 fragmentation bombs: six under each wing, could be carried. This weapons load was often used when attacking Japanese targets on the Gilbert and Marshall Islands in 1942.