Grid Collapse: Britain 4 meals from Anarchy

Britain
This applies to almost all modern countries reliant on the grid without hardening against EMP and Cypber attacks.  Decentralization is the best answer.

How to Protect Yourself:  Decentralize your backup plan

Solar for low power applications such as lighting and radio

Lighting - candles, LED lights, batteries, lamp oil and oil lamps, solar yard  and string lights.

Heat - Fuel for heat - wood, oil, gas, coal,
earth berm design and associated  design systems.

Water - storage, hand powered well, nearby steam access, filtration

Weapons - Handguns, Shotguns, And Rifles for protection

If you live in Britain forget about self defense so you might luck out and just be finished off long before you starve or die of dehydration.