围点打援

词典解释

1. 围点打援 (wéidiǎn-dǎyuán)

   1. 一种战术,抽出部分兵力围困据点,然后使用主力部队打击救援据点的援军 besiege the stronghold to annihilate the enemy relief force;encircle an enemy post and trounce reinforcements coming to its aid