A planned Allied offensive meant the repositioning of most of the British troops in Italy, and left 15th HAG spread out between the Brenta river and the Asiago Plateau where it had been since 6 January. However, it was then brought under the command of XIV British Corps in April and the rest of the British heavy artillery concentrated with it. Finding level sites for the howitzers was difficult in the wooded mountainous terrain, as was ammunition supply and command control. However, the planned Allied offensive was postponed when it became clear that the Austrians were planning their own offensive astride the Brenta. The howitzers were quietly moved into position on the nights of 11/12 and 14/15 June, and were ready when the Austrian bombardment began at dawn on 15 June (the Second Battle of the Piave River). Despite some initial Austrian gains, 48th (South Midland) Division held its main positions. 15th Heavy Artillery Group was assigned to CB fire and the heavy howitzers systematically destroyed the Austrian guns on the Asiago, notwithstanding poor visibility early on (Royal Air Force observation aircraft were able to direct the fire later). The Austrian offensive failed all along the front.