Bireh. At the same time the 53rd (Welsh) Division (Major General S. F. Mott) was to advance northwards along the Beersheba to Jerusalem road to take Hebron and Bethlehem before moving eastwards to secure the road from Jerusalem to Jericho. The 75th Division with the Australian and Yeomanry Mounted Divisions began their entry into the Judean Hills on 18 November. The first objective was to capture and secure the heights on either side of the main Jaffa to Jerusalem road at Amwas, so the 75th Division could advance up the road and into the Judean Hills. Moving up the railway line in the Wadi Surar on the right of infantry in the 75th Division was the Anzac Mounted Division's 2nd Light Horse Brigade, which was temporarily attached to the Australian Mounted Division. The brigade's 9th Light Horse Regiment carried out a turning movement up the Wadi es Selman north of Amwas to reach the village of Yalo to the east. After this successful operation the Australian Mounted Division withdrew to rest camp at the mouth of the Nahr Sukereir. Taking over the advance on the morning of 19 November infantry from the 75th Division found Amwas evacuated, but the advance guard of the Yeomanry Mounted Division's 8th Mounted Brigade, the 3rd County of London Yeomanry struggled to within of Beit Ur el Tahta that night, while the 22nd Mounted Brigade reached Shilta. 75th Division Just after the main road to Jerusalem entered the hills, it ran through the easily defended pass of Bab el-Wad. On 19 November the 75th Division infantry moved up this road; their 232nd Brigade had left Abu Shushe at 07:30 to occupy the deserted town of Amwas and by 11:00 the Indian 58th Vaughan's Rifles (Frontier Force) of 234th Brigade had fought their way up to reach the heights of Bab el Wad. After Bab el Wad, the road wound to Jerusalem through deep, narrow valleys, over steep spurs, and around the shoulders of rocky hills. There were other ways through the hills, but they were a tangle of unmapped, rough and rocky hill tracks and pathways—often little more than donkey tracks—which made movement by infantry, dismounted cavalry, and artillery very difficult. The rough tracks meandered through narrow valleys and over distorted piles of razor-backed ridges, which were broken by groups of cone-shaped hills and successive shelves of rock jutting out from every hillside at intervals