What a book. If you think you are scared about war now wait until you read this book. Imagine a war where no bullets are fired and no one is killed but your civilization is set back hundreds of years in a split second. That’s really, really scary and it’s all possible.
A simple electromagnetic pulse attack delivered via satellite could destroy electric power grids over much of the world. Pretty much everything in our society depends on a functioning power grid: telecommunications, production and delivery of oil and gas, transmission of water, electricity to run appliances, growing and delivery of foods and just about all your activities. They could all be taken away in an instant.

It’s amazing that the technology to effect this type of attack exists and no one is even talking about it. Now they will be.
Book’s webpage