Battle dress jas P40 KOSB (Battledress blouse P40 KOSB)

In the period between the wars, the regiment's regular battalions were sent all over the British Empire to Ireland, Egypt and Hong Kong but were quickly recalled home at the outbreak of the Second World War in September 1939. The 1st Battalion landed in France as part of the 9th Brigade in the 3rd Infantry Division in September 1939 for service with the British Expeditionary Force (BEF); it took part in the Dunkirk evacuation in June 1940 and the Normandy landings in June 1944 and saw action at the Battle for Caen later that month. The 2nd Battalion land in Burma as part of the 89th Brigade in the 7th (Indian) Division in September 1943 for service in the Burma Campaign and saw action at the Battle of the Admin Box in February 1944 and the Battle of Imphal in July 1944. The 4th and 5th Battalions landed at Saint-Malo as part of the 155th Brigade in the 52nd (Lowland) Division in in June 1940 for service with the British Expeditionary Force; after evacuation from Cherbourg later in the month they took part in Operation Infatuate in November 1944 and the subsequent capture of Bremen in April 1945. The 6th Battalion took part in the Normandy landings as part of the 44th Brigade in the 15th (Scottish) Division in June 1944 and saw action at the Battle for Caen later that month and then advanced into Germany. Universal Carriers and infantrymen of the 6th Battalion, King's Own Scottish Borderers move forward after crossing the Rhine, 25 March 1945. One of its heaviest losses during the war was at the ill-fated Battle of Arnhem in which the 7th Battalion, as part of the 1st Airlanding Brigade of 1st Airborne Division, suffered 90% casualties in September 1944;[7] they defended the perimeter in Oosterbeek against 2nd SS Panzer Corps.