TM 10-1670-287-23&P  C2  By Order of the Secretaries of the Army, Air Force, and Navy (Including the Marine Corps):  PETER J. SCHOOMAKER  General, United States Army  Chief of Staff  MICHAEL E. RYAN   GENERAL, USAF   Chief of Staff  D.G. MORRAL  Rear Admiral, USN  Program Executive Officer  For Expeditionary Warfare  Naval Sea Systems Command Official:  GEORGE T. BABBETT  General, USAF  Commander, Air Force Materiel Command  R.P. SHOCKEY  Director, Program Support  Marine Corps Systems Command  DISTRIBUTION: To be distributed in accordance with initial distribution IDN 255304, requirements for TM10-1670-287-23&P.  SANDRA R. RILEY   Administrative Assistant to the  Secretary of the Army  0521620  $^{ }$ Official: 