As the e-book was revealed through the war, as a way to safeguard the Polish airmen as well as their family members remaining in occupied Poland from German reprisals, Fiedler utilised pseudonyms for the airmen of 303 Squadron. This exercise was mandated inside a memo about confidential data issued by https://divisi30385046.getblogs.net/64537340/the-2-minute-rule-for-divisi303