Quan hà Bách nhị
Proper Noun (Historical/Cultural Term): - The strategic passes of Qin: Refers to the famously defensible mountainous terrain of the ancient Qin state (in modern-day Shaanxi, China), which was protected by a series of formidable natural passes. - A metaphor for an impregnable defensive position: Symbolizes a place of immense strategic advantage where a small defending force can hold off a vastly larger army, derived from a specific historical account.
The term originates from the "Records of the Grand Historian" (Shiji) by Sima Qian. It describes the heartland of the Qin state, known as Guanzhong, which was surrounded by mountains and accessible only through a few narrow passes, such as Hangu Pass and Wu Pass. The historical text states that with this terrain, the army of Qin needed only 20,000 (二萬, èr wàn) soldiers to resist an attack from 1,000,000 (百萬, bǎi wàn) troops of the allied feudal states. The phrase "Bách Nhị" (百二) is a classical Chinese numerical idiom stemming from this, meaning "two [out of a theoretical] hundred" or "two percent," representing the idea of two defending against a hundred. Thus, "Quan hà Bách nhị" encapsulates both the specific geography and the legendary military advantage it provided.
- Proper Noun:
- Địa thế "Quan hà Bách nhị" đã giúp nước Tần có lợi thế phòng thủ tuyệt vời. (The "Quan hà Bách nhị" terrain gave the Qin state an excellent defensive advantage.)
- Vị trí này được ví như "Quan hà Bách nhị", rất khó để công phá. (This position is likened to "Quan hà Bách nhị," being very difficult to assault.)
- The term is primarily used in historical, literary, or strategic discussions. It can be employed metaphorically in modern contexts (e.g., business, sports) to describe a situation where a party holds an unassailable advantage due to superior positioning or resources.
- Chiến lược của họ tạo ra một thế "Quan hà Bách nhị" trên thị trường. (Their strategy creates a "Quan hà Bách nhị" position in the market.)
- Bách Nhị (n): The core numerical idiom meaning "two against a hundred," representing an overwhelming defensive advantage. It is the conceptual heart of the longer phrase.
- Thế trận phòng ngự có tỷ lệ "bách nhị". (The defensive formation has a "two against a hundred" ratio.)
- Impregnable fortress: A place that cannot be captured or broken into.
- Strategic stronghold: A place of great strategic importance that is strongly defended.
- Unassailable position: A position that cannot be attacked or questioned.
- "Trăm hai": This is the Vietnamese vernacular reading and synonym for "Bách Nhị," carrying the same metaphorical meaning.
- Thế đất hiểm trở, thực là thế "trăm hai". (The perilous terrain is truly a "two against a hundred" situation.)
- The concept is deeply tied to the Hàm Cốc quan (Hangu Pass), which is often cited as the most critical of these defensive passes.