Context : Sterling Trucks Corporation, commonly designated Sterling, was an American truck manufacturer headquartered in Redford Township, Michigan, USA and a subsidiary of Daimler Trucks North America LLC, itself a wholly owned subsidiary of the German Daimler AG. It was originally the heavy truck division of Ford Motor Company, but was purchased and rebranded in 1997. 
Answer : Daimler Trucks North America
Which company is the parent company of Sterling Trucks?