The vulnerability of supply routes -- lifelines for NATO forces -- is of special concern to the United States as it increases its troop presence in Afghanistan.

北约物资的运输路线，也是北约军事力量的生命线，是美国尤为担心的问题，尤其最近美国不断扩大自己在该地区的驻军数量的背景之下。

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Speaking to reporters Friday, Secretary Gates would not be drawn publicly into the debate over whether the troop-intensive counterinsurgency strategy is best or whether a more limited commitment involving air strikes and Special Forces operations would be better.

VOA: standard.2009.10.23