N Objection To Declassification in Full 2013 11 14 NLC-12-28-4-7- -- ' 1 t--P I Ii THE WHITE HOUS -I TO SECRET 3 SITIVE l l I j ' i October 18 1977 i i ••· MEMORANDUlvI FOR I THE SECRETARY OF DEFENSE SUBJECT Exercise IVORY ITEM 1 The President would like to make certain that in any future exercise u i lecessary people are eliminated from the line 2 The P 'eaident would 1 2 e the standby communication net laid out prior - c another drill One should be secure and one should be open 3 J wo 1 ld li 1 e to go over the new SIOP instructions format with you·' atthe earliest possible time prior to submission to the President Zbigniew Brzezinski Tn aUl s-cRET t -rt u - TOP SECRET SENSITIVE - • ' '' ' 1 '' J' • · No Ob'ection To Declassification in Full 2013 11 14 NLC-12-28-4-7-7