The Inniskilling Regiment of Foot was a British Army infantry regiment formed in 1689. It was originally raised to serve in the Williamite War in Ireland and became known for its distinguished service in various conflicts, including the Napoleonic Wars and both World Wars. The regiment was part of the Royal Irish Regiment and was recognized for its bravery and effectiveness in battle. Throughout its history, the Inniskilling Regiment earned numerous battle honors and was known for its distinctive red uniform and green facings. The regiment was amalgamated in 1968, becoming part of the Royal Irish Rangers, but its legacy continues to be celebrated in military history.