Why is it necessary for the commander of a campaign or a tactical operation to understand the laws of strategy to some degree?

要求战役指挥员和战术指挥员了解某种程度的战略上的规律，何以成为必要呢？

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"It was a very impressive performance," said Andrew Festing, son of Field Marshal Sir Francis Festing, a commander in the Allies' Burma campaign, who attended the ceremony.

“这个仪式让人印象非常深刻，”参加了仪式的安德鲁·费斯汀(Andrew Festing)说。他的父亲弗朗西斯·费斯汀(Francis Festing)是陆军元帅，曾担任同盟国在缅甸战役中的指挥官。

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In recent weeks, activists have mounted an online campaign accusing Ahmed Afash, a prominent commander based in Aleppo, of banditry and kidnapping.

CNN: How Islamists are gaining ground in Syria

By the evening of that next day, Commander-in-Chief Barack Obama was jetting off to a campaign fundraiser in Las Vegas, followed by parties with Jay-Z and Beyonce.

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The time President Obama has spent discussing and debating the report from Nato commander General Stanley McChrystal has been perceived by many as a sign of indecision, which is damaging the campaign on the ground with every passing week as it sends out a message of a lack of resolve.

BBC: PM bid to bolster Afghan support