The PPCLI was raised on the initiative of Captain Andrew Hamilton Gault in 1914, to participate in the Canadian war effort for the First World War. It was the first Canadian infantry unit to enter the theatre of operations, arriving in France on December 21, 1914. The regiment has also participated in the Second World War, the Korean War and the War in Afghanistan, as well as in numerous NATO operations and United Nations peacekeeping missions. The regiment has received 39 battle honours, three Commander-in-Chief Unit Commendations and the United States Presidential Unit Citation.