The 1st Airlanding Brigade was an airborne brigade of the British Army during the Second World War and the only glider infantry formation assigned to the 1st Airborne Division. The brigade was formed in 1941 through the conversion of an existing infantry brigade previously stationed in India. Two of the initial four infantry battalions left in May 1943 to form the 6th Airlanding Brigade and were replaced by a single new battalion, thereby reducing the brigade's strength by one quarter.