 Complete the following phrase:  Lebanese shipping, which witnessed flourishing periods in its early history, had its main expansion in the mid 20th century. Before 1975 the port of Beirut was a major entrepôt for the Middle East, especially for goods bound for Damascus and Amman. In 1974 approximately 3.4 million tons of goods were unloaded at the Beirut docks, 668,000 tons were loaded, and 932,000 tons of transit goods were handled. When the Civil War began, however, the port became a major battleground. Battles also took place there in subsequent clashes between 1978 and 1987. Despite strenuous efforts to restore the port to full working order, by 1987 it had yet to regain anything like its former prominence. Between the start of the 