Of these, the "northern line" indicated the US-Republic of Korea alliance; the "central line" indicated US-Japan bilateral relations and the "US-Japan Security Treaty"; and the "southern line" referred to good relations between the US and ASEAN and American security guarantees to Thailand, the Philippines, and Australia.
其中，「北線」指美國與南韓既有的聯盟；「中線」指美、日雙邊關係和「美日安保條約」；「南線」是美國與東協的良好關係和美國對菲律賓、泰國與澳洲的安全承諾。