Complex sentence: Abd el-Hamid received orders from 16th Division Headquarters to retreat, his brigade abandoned its Chinese Farms positions and reinforced the lines of the 18th Mechanized Brigade to the north during the night of October 17/18.
Split into simpler sentences: Abd el-Hamid received orders from 16th Division headquarters to retreat. His brigade abandoned its Chinese Farms positions and reinforced the lines of the 18th Mechanized Brigade to the north during the night of October 17/18.