Story on Duke Xiang of Song (宋襄公): In the Battle of Hongshui (泓水) against the much stronger and fully prepared enemy, Xiang’s troops were defeated thoroughly and he himself was badly hurt and died in the following year (637 BC). Earlier, his brother had advised him to attack when the soldiers of the Chu State were crossing the river. Xiang announced his benevolence and righteousness, insisting on waiting until the enemy completely crossed the river. “We are not Duke Xiang of Song,” Chinese leader Mao Zedong commented in his On Protracted War (No.83), “and have no use of his asinine ethics” (我们不是宋襄公，不要那种蠢猪式的仁义道德). Which principle of Sun Tzu for river warfare did Duke Xiang violate leading to the catastrophe for his kingdom?

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BlackTom AI · Accepted Answer

The question asks which Sun Tzu principle for river warfare Duke Xiang of Song violated, leading to disaster in the Battle of Hongshui. We'll inspect each option in turn and connect it to sun tzu's river-crossing wisdom.
Option 1: 'Meet the invader near a river which he has to cross. (meaning Attack them at the water’s edge)' This advice corresponds to choosing a favorable, decisive point where the enemy is vulnerable during crossing. In this case, Xiang did not attack at the water’s edge; he delayed and waited for the Chu forces to cross completely. From a Sun Tzu perspective, attacking at a vulnerable crossing is a typical opportunity for defense of the river line, but Xiang’s overcautious adherence to ethics prevented him from exploiting the crossing moment. Thus, while the general idea is valid in river warfare, this answer describes a different tactic than what Xiang failed to implement, and it does not identify the actual violated principle in Xiang’s decision.
Option 2: 'It will be best to let half the army get across, and then deliver your attack.' This is the precise tactic attributed to Sun Tzu for river crossings: strike after the enemy has committed half their force to crossing, maximizing surprise and exploiting the disorganized state of the opposing army. Xiang’s insistence on waiting for the entire army to cross deprived him of the opportunity to strike when the enemy was half-crossed and most vulnerable. By overextending moral considerations to the entire crossing, he violated the principle of attacking when the enemy is partially committed and unprepared, which Sun Tzu warns against as a moment to seize advantage.
Option 3: 'Advance to meet an invading force in mid-stream when it crosses a river in its onward march.' This option describes a bold, aggressive engagement during crossing, which can be a strong tactic if properly timed and executed. However, it does not reflect the specific mistaken decision of waiting for the whole army to cross; rather, it suggests meeting the enemy in the midst of crossing. Since Xiang did not choose the mid-crossing engagement and instead postponed until full crossing, this option does not capture the criticized approach he failed to adopt.
Option 4: 'Allow all of invading force to cross, then strike' This is essentially the opposite of Sun Tzu’s river-crossing guidance in many accounts, which warn against letting the enemy complete crossing and settle before attacking. In the Xiang case, he did exactly that by waiting for the entire Chu force to cross, thereby losing the favorable window. Therefore, this option correctly aligns with the type of error Sun Tzu warns against, and explains the strategic misstep of waiting until the enemy is fully deployed and secure on the far bank.

PS3200W02 Ch09 Quiz_Army on March

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PS*3200*W02 Ch09 Quiz_Army on March

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类似问题

Question at position 29 Ancient Chinese military strategist Sun Tzu’s written book ...................gives the world an idea of strategies. This book has 13 chapters on different strategies related to wars.Art of WarArt of strategyArt of WarriorAll of the above

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The principle on which to manage an army is _______.

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希望你的学习变得更简单

PS3200W02 Ch09 Quiz_Army on March