Be that as it may, the current hectic pace of military engagements may ultimately prove to be the achilles'heel of american power.

尽管如此，现在紧张的交战节奏可能最终被证明是美国权力的弱点。

The future of military engagements in these colonies is a testament to human ingenuity and adaptability.

这些殖民地的军事行动的未来证明了人类的聪明才智和适应能力。

One is that the U.S. has turned back to a level of military engagement in the region to fight ISIS that it didn't anticipate.

其中一个是美国恢复了该地区一定程度的军事介入，以打击此前未预见到的ISIS武装力量。

The bombing, apparently aimed to cause maximum civilian carnage, adds to fears and violence in the war-wrecked country could escalate as the US and NATO end nearly 20 years of military engagement.

此次爆炸袭击显然旨在制造最大限度的平民伤亡，并加剧人们的忧虑，在美国和北约结束近20年的军事接触之际，这一饱受战火蹂躏的国家的暴力活动可能升级。