As decreed: 1. Defender nominates table edge as the direction of opposing capital/airbase (this affects attacker payload/loiter time, and entry edge for attacker passes) 2. In secret defender draws air defence plan, emplacing limited observation/warning resources off table and air defence sites on table (for bush base raids, anything and everything from MANPADS down to HMG) 3. Attacker now nominates point on his chosen entry edge and an exit point on opposite edge. Draw a line between the two and determine a 30cm wide danger space for attacks along that path. (Aircraft can't deviate from a nominated path on each pass across the table) 4. Air and AA attacks are of two Kinds, Gun/missile or HE. 5. Get a bag of cotton balls (yes, Wellsian) one colour is HE, the other gun/missile 6. with the attackers path across the table known, compare it with the fields of fire/danger space of the now revealed defenders AA Plan. 6. Where they cross the air player gets attacked and may attack