This results in all strategies focusing on attacking, and the only valid defensive strategy being to counter-attack.

One valid strategy was spamming social networks with false reports to throw competitors off the trail of real sightings.

Getting through missions using force and bullets is a valid strategy, but you'll be missing much of what the early levels have to offer.

As a message to the Russians that we intended to support our Scandinavian friends, yes, sending the carrier battle group in was a valid strategy.

It will be interesting to see if Apple has a valid strategy for TV.

I still feel it is a valid strategy, but only for a certain class of users - the ones who can effectively maintain these habits 24/7/365.

The distinction is worth noting, because there are two valid strategies.

You don't have to be aiming exactly down the barrel of your opponent's gun to hit them, so spray and pray is often a valid strategy.

But that's a complex issue and "safety at all costs" is not a valid strategy.