The speed with which electronic attacks could be launched gives little time for cool-headed reflection and favours （early, even pre-emptive, ）attack.

电子攻击的速度让人没有时间进行冷静的反思，并且适合抢占先机，甚至先发制人的攻击。

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The exercises, it said, go beyond previous ones held on the peninsula and "envisage a pre-emptive attack on North Korea".

BBC: North Korea warning as US and S Korea begin joint drill

North Korea would not risk a pre-emptive attack on the South, but the Kim dynasty now believes it has a card to protect itself, which is its main objective.

CNN: What's Kim Jong Un's intention with the nuclear test?

The speed with which electronic attacks could be launched gives little time for cool-headed reflection and favours early, even pre-emptive, attack.

ECONOMIST: The threat from the internet