 Complete the following phrase:  Intruder pilots began accumulating personnel successes. One such pilot was Paul Semrau. He claimed his 6th victory on the night of 1819 June 1941 off Great Yarmouth. Semrau claimed 46 night victories until he was killed by Supermarine Spitfires in February 1945 conducting an unwise daylight test flight. There were successful intruder pilots who did not become high-claiming night fighters. Albert Schulz and Hermann Sommer of 2.NJG 2 claimed several victories over England; Sommer later fought in the 