The withdrawal of the Turkish forces on the south bank of the Tigris naturally left their positions on the north bank very much exposed to British attacks. It was, therefore, not at all surprising that English artillery subjected the Turks on the north bank to heavy bombardments during the following days, nor that this fire was extremely effective. However, in spite of this fact, the Turks continued to maintain their positions on the north bank of the Tigris. Throughout the balance of May, June, and July, 1916, nothing of importance occurred in Mesopotamia. The temperature in that part of Asia during the early summer rises to such an extent that military operations become practically impossible. It is true that from time to time unimportant skirmishes between outposts and occasional artillery duels of very limited extent took place. But they had no influence on the general situation or on the location of the respective positions. During the early part of the month the British trenches on the north bank of the Tigris were pushed forward a short distance, until they were within 200 yards of the Turkish position, Sanna-i-Yat, where they remained for the balance of midsummer. To the south of Magasis, on the south bank of the river, British troops occupied an advanced position about three and one-half miles south of the main position. Then they stopped there too. About the same time, June 10, 1916, Turkish guns sunk three barges on the Tigris, the only actual success which the Sultan's forces won since the fall of Kut-el-Amara. Along the Euphrates, where British troops had held certain positions ever since 1915, there was also an almost entire lack of activity, except that occasional small and entirely local punitive expeditions became necessary in order to hold in hand the Arab tribes of the neighborhood. Climatic conditions continued extremely trying, and enforced further desistance from military activity until, toward the end of July, relief in the form of the _shamal_ (northwest wind) would come and once more make it possible to resume operations. CHAPTER XLII RUSSIAN ADVANCE TOWARD BAGDAD Coincident with the Russian advance in Armenia and the English attempt at capturing the city of Bagdad by advancing up the Tigris, the Russian General Staff also directed a strong attack against this ancient Arabian city from the northeast through Persia. Before the Mesopotamian plain, in which Bagdad is situated, could be reached from Persia the mountains along the Persian-Turkish frontier had to be crossed, an undertaking full of difficulties.