President Truman's relief of General Douglas MacArthur with ammunition and to sail for Pusan. President Truman met with the Joint Chiefs of Staff and other advisors that day at Blair House and approved the actions already taken by MacArthur and Secretary of State Dean Acheson. At another meeting at Blair House held on the evening of 26 June, amid reports of a rapidly deteriorating situation in South Korea, Truman approved the use of air and naval forces against military targets south of the 38th parallel north. Subsequently, on 27 June, the United Nations Security Council passed Resolution 83, which recommended that "members of the United Nations furnish
President Truman's relief of General Douglas MacArthur written: MacArthur later wrote that Martin had released the letter "for some unexplained reason and without consulting me", but it had not been marked as being confidential or off the record. The practice of intercepting and decrypting diplomatic messages of friend and foe alike was a closely held secret in the 1950s. In mid-March 1951, Truman learned through such intercepts that MacArthur had conversations with diplomats in Spain's and Portugal's Tokyo embassies. In these talks, MacArthur had expressed confidence that he would succeed in expanding the Korean War into a major conflict resulting in the permanent disposal of the "Chinese