Complex sentence: For Balbo, the agreement meant the immediate loss of 10,000 Italian troops; it was characterised by renewed promises of undertakings that Mussolini had previously broken and he could easily break again.
Split into simpler sentences: For Balbo, the agreement meant the immediate loss of 10,000 Italian troops. But the agreement was characterized by renewed promises of undertakings which Mussolini had previously broken and which he could easily break again.