Post-Unification War Inertia / 统一后战争惯性

Post-unification war inertia / 统一后战争惯性 is the explanation 《资治通鉴·秦纪》123-2｜古代时期的“倒插门”到底有多危险 gives for why 秦国 continues large campaigns after the six states have been unified. The episode argues that war had become a state engine through 商鞅变法, 耕战逻辑, and the 军功爵制, so stopping war would disturb interests, emotions, and expectations built across generations.

The concept therefore shifts blame from one ruler’s temperament to institutional momentum. Once killing enemies can become rank, income, and honor, a population used to war rewards does not automatically become satisfied with slow agricultural work. Qin’s southern and northern campaigns become outlets for ambition and instruments for governing groups the state marks as unstable.

This concept should be kept distinct from 预言触发政策. The “亡秦者胡” warning helps narratively trigger the northern campaign in Qinji 123-1, but Qinji 123-2 supplies a structural explanation for why the campaign made sense even without prophecy.

Key Claims

• Victory does not automatically dissolve the institutions that produced victory.
• War can become an allocation system for status, land, rewards, and emotion.
• A state built to reward battlefield merit may need new external targets once old rival states have become internal commanderies.
• The episode reads Qin’s frontier campaigns as both expansion and internal pressure management.

Connections

• 秦国, 嬴政 / 秦始皇, and 商鞅变法 - regime, ruler, and reform origin.
• 耕战逻辑 and 军功爵制 - incentive architecture behind the inertia.
• 边缘身份征发 - social sorting linked to continuing war.
• 百越, 匈奴, and 蒙恬 - southern and northern campaign fields in the source.
• 预言触发政策 - contrasting immediate omen frame for the northern campaign.