June 5, 42. USA declares war on Bulgaria, Hungary and Romania.

It has not declared war since.

How do you detect that any given country is behind an attack launched by a botnet of American computers?

Heck we still don't know that it was the US who were behind Stuxnet.

You're talking about formal declarations of war.

Afghanistan? Iraq? Vietnam?

Going to war might not be semantically the same as declaring war, but that doesn't change a thing, within the context at hand.

Do you understand the technical reasons making it hard to get a reliable 'return address' for someone who cracked a system?

I do.

I also call BS on:

1. The US has not declared war in over 70 _years_. -> Denial of objective reality.

2. In fact one of the biggest issues with a cyber attack is that we may never know where it came from. -> OMG must control internet.