防止越南、蘇聯南北夾擊中國，1978年蘇越簽訂了帶有軍事同盟性質的條約：一方受到攻擊，另一方有義務相助。

來源: 競選於 2024-05-20 09:46:31 [博客] [舊帖] [給我悄悄話] 本文已被閱讀：次

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