In the spring of that year it looked, indeed, as though the British Empire alone was making any headway against the enemy Powers. Even on the cosmopolitan Salonika front offensive action was left to British troops, and at no time during the war did any but troops of the British Empire partake in the defence of its dominions and protectorates. These were all safe enough by the middle of April 1917, and those that were within reach of the enemy were being used as bases for attack upon his forces. Maude, with his army based upon India had now blocked the southern route into Persia, and Sir Archibald Murray was advancing into Palestine. The capture of Rafa on the frontier was followed on 28 February by that of Khan Yunus, five miles within the Turkish border, and the Turks under their German general Kressenstein withdrew to Gaza. There, on 26 March, they were attacked by Sir Charles Dobell, of Cameroon fame, with three infantry and two mounted divisions, including a number of Anzacs. The design was to surround and capture the Turkish forces in Gaza, and the only chance of success lay in the suddenness of the blow and its surprise. For Dobell's base was distant, his men had to drink water brought from Egypt, and in spite of the railway he had not at the front stores, equipment, or troops for a lengthy struggle, while the Turks could bring up superior reinforcements. A sea fog robbed him of two hours' precious time; and although the Wady Ghuzze and other defences of Gaza were taken and a force of Anzacs actually got behind Gaza and were fighting in its northern outskirts at sunset, night fell with the task unfinished and the British divisions out of touch on their various fronts. A retirement was accordingly ordered, and on the morrow Kressenstein counter-attacked. He was driven back with considerable losses, and although Dobell had failed to take Gaza he had reached the Wady Ghuzze and secured the means of bringing his railhead right up to the front of battle. With a few weeks' respite for reinforcement and reorganization, April might yet see the British well on the way to Jerusalem; for Arras was not intended to stand alone, and in every sphere of war the Allies had planned a simultaneous offensive (*see Map, p. 352*).