Complex sentence: The start of the First Balkan War in 1912 put a stop to field excavations in Greece, Lamb eturned to England, stopping in Paris to research terracottas at the Louvre.
Split into simpler sentences: The start of the First Balkan War in 1912 put further field excavations in Greece on hold. Lamb returned to England, stopping in Paris to research terracottas at the Louvre.