Tobruk is a port city on Libya's eastern Mediterranean coast. It is near the border with Egypt. It is the capital of the Butnan District. In 2011, it had a population of about 120,000. There was once an ancient Greek colony at Tobruk. Later, the Romans built a fortress there. By 1911, Tobruk had become an Italian military base. During World War II, in a battle called the Siege of Tobruk, Allied forces captured the town. After the war, Tobruk was rebuilt. During the 1960s, a port terminal was built at Tobruk.