 Complete the following phrase:  By October the Luftwaffe had reinforced Fliegerkorps II, and a new round of heavy raids began, using new low-level tactics. However, these attacks also lost heavily to the AA guns and RAF fighters, despite the increasing shortages of food and supplies on the island. At last, in November Welshman and her sister ship HMS Manxman appeared, followed by a supply convoy. With the Axis defeat at 