Complex sentence: The Germans intended to retake the Bourlon salient and also to attack around Havrincourt while diversionary attacks would hold IV Corps; it was hoped to at least reach the old positions on the Hindenburg Line.
Split into simpler sentences: The Germans intended to retake the Bourlon salient and also to attack around Havrincourt while diversionary attacks would hold IV Corps. Overall it was hoped to at least reach the old positions on the Hindenburg Line.