September 15 in history, these intelligence were sent to the US president

情报历史上的9月15日，这些情报被递交给时任美国总统

Intelligence History on 1961 September 15
1961年9月15日，苏联愿意限制北越对美缓和，来谋求老挝的中立政府。

Intelligence History on 1962 September 15
Intelligence History on 1964 September 15
Intelligence History on 1965 September 15
Intelligence History on 1966 September 15
Intelligence History on 1967 September 15
Intelligence History on 1969 September 15
Intelligence History on 1970 September 15
Intelligence History on 1971 September 15
Intelligence History on 1972 September 15
Intelligence History on 1973 September 15
Intelligence History on 1975 September 15
Intelligence History on 1976 September 15