Canadian Infantry Begins Attack on Calais through Operation Undergo
The 7th and 8th Canadian Infantry Brigades opened their attack on Calais and its western coastal defences at 10:15am on 25 September after a day's delay, following preparatory air and artillery bombardmenets.
The Régiment de la Chaudière were to advance through Escalles, taking Cap Blanc Nez, and link up near Sangatte with the North Shores Regiment. The North Shores had the difficult task of taking Noires Mottes, high ground near Sangatte that had been heavily fortified and where Battery Lindemann was located. In order to shield Canadian activity around Cap Blanc Nez and Calais from observation and interference from the batteries at Cap Gris Nez, a large smoke screen was established along a three kilometre line inland from Wissant. This was successfully maintained for five days.
The capture of Cap Blanc Nez proved to be unexpectedly easy. As soon as the Chaudieres' assault reached the first defences, the surrender of the whole Cap Blanc Nez was offered. This was completed just two hours later, most defenders reportedly being dead drunk.
The North Shores' attack on Noires Mottes was supported by flail tanks from the 79th Armoured Division and gunfire from the 10th Armoured Regiment on the approach through minefields and by Crocodiles to reduce fortifications. Early attempts by small groups of Germans to surrender were discouraged when they were shot down by their own side. The advance was held up, however, by a combination of effective defence and bomb craters that prevented the Crocodiles' advance before nightfall. Negotiations were opened with the help of German prisoners and the Noires Mottes garrison surrendered at first light on the following morning, 26 September. A formidable defensive position had been captured cheaply. It appears that the Sangatte battery was also surrendered at the same time. Examination of the forts showed that they had been heavily booby-trapped.
The attack began on 25 September, following the now welltested pattern: a shattering bombing attack and artillery bombardment followed closely by assault by armour and infantry. The 8th Brigade went for the cross-Channel batteries in the area from Sangatte to Cape Blanc Nez, west of Calais, while the 7th assailed the town itself from the south. Progress was slow but steady. All resistance in the battery positions ended on the 26th; and the 7th Brigade reached the coast west of the town and began fighting its way in from this direction. On 27 September, after further bombing, the old forts of Lapin and Nieulay