 Complete the following phrase:  By October, the Luftwaffe had reinforced Fliegerkorps II, and a new round of heavy raids against the island began in an effort to restrict the RAF and Royal Navys ability to interdict Axis convoys to Libya. The raiders employed new low-level tactics that lost heavily to the AA guns and RAF fighters. Night raids were mainly made by a succession of single aircraft at high level. However, the SL crews were now much more proficient, achieving 37 per cent illuminations of aircraft crossing the coast, and these were heavily engaged. At last, a supply convoy got through in November. With the recent Axis defeat at 