Complex sentence: There are also several subsidiaries in Eastern Europe and many drivers from Bulgaria and Romania are employed by the company, which operates with approximately 8,000 employees worldwide, including about 3000 in Germany and 4500 truck tractor units.
Split into simpler sentences: There are also several subsidiaries in Eastern Europe and many drivers from Bulgaria and Romania are employed by the company. The company operates with approximately 8,000 employees worldwide, including about 3000 in Germany and 4500 truck tractor units.