 Complete the following phrase:  During the course of their campaign through Ottoman Palestine and the Sinai against the Ottomans, the British took Jaffa in November 1917 although it remained under observation and fire from the Ottomans. The battle of Jaffa in late December 1917 pushed back the Ottoman forces securing Jaffa and the line of communication between it and Jerusalem which had been taken on 11 December in the 