Memorandum from Al Haig to Henry Kissinger, "Memorandum from Secretary Laird Enclosing Preliminary Draft of Potential Military Actions re Vietnam," 2 March 1969, enclosing a memorandum from Secretary of Defense Laird to Kissinger, 21 February 1969, and report [excerpts] from Joint Staff, Top Secret/Sensitive, with Kissinger's Memo Reply to Laird, 3 March 1969, Top Secret