Immediately after the war Warfield was involved in the conflict with communist guerrilla forces on the Malayan Peninsula that created the Malayan Union. He was posted as Command Armament Officer at Headquarters Far Eastern Air Command. The following year he was promoted as a substantive Group Captain and appointed as Senior Air Staff Officer (SASO) at Air Headquarters Malaya, later moving to Advance AHQ Malaya. In 1950 Warfield returned to the UK as Officer Commanding RAF Waddington in Lincolnshire.