 Between 10 and 14 June , the last water source on the central route across the Sinai Peninsula was destroyed by the <unk> column . This column , consisting of engineers and units of the 3rd Light Horse Brigade , the <unk> Camel Corps , and the Egyptian Camel Transport Corps drained 5 @,@ 000 @,@ 000 US gallons ( 19 @,@ 000 @,@ 000 l ; 4 @,@ 200 @,@ 000 imp gal ) of water from pools and cisterns in the Wadi <unk> and sealed the cisterns . This action effectively narrowed the area in which Ottoman offensives might be expected to the coastal or northern route across the Sinai Peninsula . 
