Princess Patricia's Canadian Light Infantry (PPCLI) is one of Canada's most famous infantry regiments. Founded at the outbreak of World War One, the PPCLI quickly established a reputation for ground-breaking leadership, service and sacrifice. The PPCLI distinguished itself in both World Wars, Korea, Afghanistan and on numerous operations in support of the United Nations and NATO.

The Regiment has been awarded 39 Battle Honours, a United States Presidential Distinguished Unit Citation and two Commander-in-Chief Commendations for its overseas service.

The PPCLI is one of only three Canadian Regular Force infantry regiments. It comprises three Regular Force battalions:

• the First Battalion, garrisoned in Edmonton, Alberta;
• the Second Battalion, garrisoned in Shilo, Manitoba;
• the Third Battalion, garrisoned in Edmonton, Alberta;
• a Reserve Force battalion, The Loyal Edmonton Regiment, also known as 4 PPCLI;
• PPCLI Regimental Headquarters, based in Edmonton, Alberta; and
• The PPCLI Association, which consists of serving and retired soldiers and has 12 Branches across Canada.