On 21 December/22 December 1917, at Fejja, Palestine, after a position had been captured, the enemy immediately made counter-attacks up the communication trenches. Lance-Corporal Christie, seeing what was happening, took a supply of bombs and went alone about 50 yards in the open along the communication trench and bombed the enemy. He continued to do this in spite of heavy opposition until a block had been established. On his way back he bombed more of the enemy who were moving up the trench. His prompt action cleared a difficult position at a most difficult time and saved many lives.