蘇聯自 1922 年建立後，在主權的實踐上有兩重要的轉折點，一是 1922 年的建立，是透過條約的簽訂而組成。也就是 1922 年的蘇聯在本質上具有「邦聯」的性質。但是，隨著 1924 年蘇聯憲法的通過，「邦聯」的蘇聯轉換 成「聯邦」的蘇聯，原來俄羅斯聯邦、烏克蘭、白俄羅斯及外高加索聯邦四個共和國主權的安排，透過憲法架構下「自由退出權」的設計得到妥協。在這樣的架構下，蘇聯體制的變異性成為一個特殊的現象。這種變異性使蘇聯在聯合國創立之初，就出現「一國三席」的特..

During its establishment in 1922 and political transformation in 1924, the USSR transformed from a confederation to a federation through the Soviet Constitution in 1924. As a result, four sovereignties, including the original Russian SFSR, the Ukrainian SSR, the Byelorussian SSR, and the Transcaucasian SFSR, were entitled free exit rights as a compromise under the constitutional framework. This structure led to a unique phenomenon where one nation had three seats at the UN. While the USSR served as a permanent member in the U..

1960 年代末期，海洋地質專家即已預測東海大陸礁層蘊藏著豐富的油氣資源，並且造成了周圍國家的震撼，臺灣、中國與日本競相投入海域的探勘活動。但是，後來為了避免國際紛爭，各方遂停止在東海探採石油。然而，隨著海底資源開發技術的發展、國際原油價格節節攀升，以及聯合國海洋法公約的生效，中、日雙方圍繞在東海油氣田的爭端再度爆發出來。由於中國開始在日本主張的「中間線」附近開採石油，造成日本的強烈反應，雙方衝突不斷升級，值得臺灣密切關注。深究中、日在東海發生爭端的根本原因..

In the late 1960s, marine geologists had predicted that the continental shelf in the East China Sea is rich in oil and gas. This finding shocked the surrounding regions of Taiwan, Japan, and China, leading to a fever of oil exploration. These countries then stopped the exploration to prevent further international disputes. However, as new seabed resources exploring technology is developed, rising price of crude oil, and the implementation of the UN Convention on the Law of the Sea, the conflict of the East China Sea oil and g..