Complex sentence: With conflict looming in the 1930s, an aerodrome large enough for bombers was built next to the town on low alluvial land known as the Fendom bordering the Dornoch Firth.
Split into simpler sentences: With conflict looming in the 1930s, an aerodrome large enough for bombers was built adjacent to the town. It was on a low-lying alluvial plain known as the Fendom bordering the Dornoch Firth.