 The route was extended through to Haifa in Mandate Palestine after World War I, to Tripoli, Lebanon in 1942 and became a vital part of the wartime supply route for Egypt.As a result of the 1947–1949 Palestine war, the Palestine Railways main line was severed at the 1949 Armistice Line.The 1956 Israeli invasion severed Sinai's rail link with the rest of Egypt was reconnected its rail link with Israel.