Giuseppe Garibaldi is known for his role in the unification of Italy and as a key figure in the Risorgimento. A military leader and nationalist, Garibaldi's campaigns were crucial in merging various Italian states into a single nation in the 19th century. His efforts in battles like the Expedition of the Thousand significantly advanced the movement towards unification, fostering a sense of Italian national identity. Garibaldi remains a celebrated figure in Italian history, symbolizing the struggle for national unity and independence.