 Complete the following phrase:  Two Gruppen of the anti-shipping Kampfgeschwader 100 KG 100 equipped with Do 217s in 1943, with IIKG 100 receiving the Do 217E-5, equipped to carry the Hs 293 guided missile and IIIKG 100 the Do 217K-2, with the Fritz-X guided bomb. IIKG 100 made its combat debut against Royal Navy warships in the Bay of Biscay on 25 August 1943, when it near missed the sloop HMS Landguard, while on 27 August, a second attack by 18 Do 217s sank the sloop HMS Egret and badly damaged the destroyer HCMS Athabaskan. This attack lead to a temporary withdrawal of Royal Navy surface ships from the Bay of Biscay until the guided weapon equipped aircraft were transferred to the Mediterranean following the 