I'm a beginner at bitcoin. Ummm so how can I use bitcoin as a survivalist precaution. I'm thinking of something where it's WWIII and I can still use bitcoin. Probably if it's the end of the world, the USA would probably freeze bank accounts and stocks. So is bitcoin feasible for the end of the world? Like if I fled the USA and went to Africa/switzerland/mexico, can I still use bitcoin? What type of wallet should I use? What brand of wallet should I use?

...hopefully I'm in the right forum category....