All recommendations within this article are informed by expert editorial opinion. If you click on a link in this story we may earn affiliate revenue. A COLD War expert has assembled a "nuclear war ...

Bear Grylls tried out this approach on TV and explained that the SAS had adopted it as an important survival method in their training manual. "It was Linda; the idea was all hers," says Douglas.

That’s where the best bug-out bags (a.k.a survival kits) come in. Essentially a portable emergency kit (the name supposedly comes from the backpacks Army pilots took with them when they were ...