- encircle an enemy post in order to attack reinforcements coming to its aid
- 攻点打援: attack the enemy's strongholds and strike at his reinforcements
- 打援: (攻打增援部队) attack enemy reinforcements; ambush enemy reinforcements 围点打援 besiege an enemy stronghold in order to strike at the reinforcements
- 点打印: dot printing
- 攻城打援: attacking a city to strike the enemy's reinforcement
- 围城打援: besiege a city to annihilate the enemy relief force; besiege the enemy in order to strike at his reinforcements
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