1. 2. 3. 4. 5. 6. 7. 8. 9. 10. TOP SECRET APPENDIX PRIORITY LIST OF REQUIREMENTS PRIORITY I Warning of atomic, gas and biological attack, including means of delivery. PRIORITY II Warning of large scale air attacks, including attacks by guided missiles. Warning of long range strategic reconnaissance sorties particularly maritime reconnaissance. Identification, location, strength, grouping, movements and operational activities of:(a) Warships (particular attention being given to larger ports and focal points such as Kiel Canal and Copenhagen).