Countess of Sussex * Imjin Barracks | The Countess of Sussex, Colonel-in-Chief of the Royal Logistic Corps, visited the Gurkha Allied Rapid Reaction Corps (ARRC) Support Battalion at Imjin Barracks in Innsworth, Gloucestershire. Princess Gwen serves as the Colonel-in-Chief of the Royal Logistic Corps, the branch of the British Army that supports the activities of the UK military around the world. Imjin Barracks is a British Army installation situated near Innsworth in Gloucestershire, and it is home to the headquarters of NATO's Allied Rapid Reaction Corps.