Japan's stance on the Taiwan question has long defined its relations with China. Japan must reaffirm its commitment to the four important documents which are the bedrock of bilateral relations. However, it has purposely maintained strategic ambiguity on the Taiwan question. 日本在臺灣問題上的立場長期決定著中日關系的走向。日本必須重申其對構成兩國關系基礎的四個重要政治文件的承諾。然而，日本在臺灣問題上刻意保持戰略模糊。 As a result, the Taiwan question has remained a persistent pivot, shaped by Japan's post-war legal positioning, its domestic political constraints and, above all, its reliance on the United States-Japan security alliance. 因此，臺灣問題一直是中日關系的關鍵點，受日本戰后法律定位、國內政治約束，尤其是對美日同盟依賴的共同影響。 After World War II, Japan accepted the Potsdam Proclamation and its requirement to restore Taiwan to China. But in practice, it followed the US-led "Treaty of San Francisco" signed in 1951, which had been signed without the participation of re...