The division's first major offensive action of its own was Operation Jupiter, to take Hill 112, which had been briefly captured by British armour during 'Epsom' but had to be abandoned. The attack on 10 July was supported by all the divisional artillery and mortars, plus the artillery of adjacent divisions. It was supposed to break through and seize bridgeheads over the River Orne, but the massive barrage stunned but failed to suppress the defenders from 10th SS Panzer Division. When the Wessex infantry went forward they came under heavy fire as they fought their way up the slopes. The fighting drew in all the reserves until 5th Battalion Duke of Cornwall's Light Infantry (DCLI) was the last uncommitted battalion. It attacked up the slopes of Hill 112, described as 'one of the most tragic acts of self-sacrifice in the entire North West European Campaign'. Launched at 20.30 towards 'The Orchard' on the crest of the hill, and supported by a squadron of tanks and all available guns, including the Bofors of 110th LAA Rgt, the attack reached the orchard, but could get no further. The DCLI held out through the night but by mid-afternoon on 11 July all the anti-tank guns on the hill had been knocked out, the tanks had to retire to the reverse slope, and the defence was almost over. When the order was given to withdraw some 60 survivors of 5th DCLI were brought down. Both sides remained dug in on the slopes, with the hilltop left in No man's land. The division had to hold its positions under mortar fire for another 10 days, described by the commander of 214th Bde as comparable only 'to the bombardment at Passchendaele'. This defence was followed by a final set-piece attack, Operation Express, which succeeded in capturing Maltot on 22 July.