Complex sentence: Commander Dumaresq attempted to trap the aircraft by dispersing the rest of the allied warships in a circular formation with the zeppelin in the center, leaving "Sydney" alone to engage the enemy target.
Split into simpler sentences: Commander Dumaresq attempted to trap the aircraft by dispersing the rest of the allied warships in a circular formation with the zeppelin in the center. Leaving "Sydney" alone to engage the enemy target.