Better get prepared, and know what to expect, especially if this turns nuclear. I found these books on Amazon:

Nuclear Handbook for Medical Service Personnel
[link to www.amazon.com]

NBC Protection: FM 3-4
[link to www.amazon.com]

Planning For Survival
[link to www.amazon.com]

And for those up close and personal times:

Combat in Built-Up Areas: Subcourse Number IN0531
[link to www.amazon.com]

It is going to get bad, please get ready.