 North of the Perfume River, on 1 February, the ARVN 1st Division enjoyed some limited success.Although the 2nd and 3rd Battalions of the 3rd Regiment remained outside of the Citadel walls, unable to penetrate the PAVN defenses; the 2nd and 7th Airborne Battalions, supported by armored personnel carriers and the "Hac Bao" Company, recaptured the Tây Lộc airfield.At about 15