"So, how is it that you can write about military tactics and weapons if you've never been through war(or you never mention it if you did go through war)?"

Everything I didn't know, I learned from Tom Clancy.

Yeah, I'm a bit of a fan of Tom Clancy's books. Currently, I have these ones:

The Teeth of the Tiger
Executive Orders
Search for Red October
The Bear and the Dragon
Splinter Cell
Splinter Cell: Operation Barracuda
Splinter Cell: Checkmate
Splinter Cell: Fallout
GHOST Recon
Endwar

Endwar is my most recent find. It's a story about World War 3 beginning with a nuclear exchange between the middle eastern countries, thus wiping them off the map. Then, taking hold of the current pandemonium, the Russian Federation seeks to expand its power by taking full control of the Canadian Oil Reserves in Alberta. They enlist the help of terrorist organization Green Brigade, led by Green Vox, who sets up multiple bombs throughout the story, effectively weakening the trust between the European Union and the American Senate. America and Europe are forced to destroy the International Space Station for fear that, the Russians having taken over, lasers might be fired upon the Earth, killing millions. After that, current president David Beccera sends in Joint Strike Force soldiers to Alberta, Edmonton, and High Level to ward off oncoming Russian Spetsnasz soldiers and heavily armed vehicles and aircraft.

Shortly before all this, the Joint Strike Force sent in Army Special Ops. disguised as Russians to kidnap GRU's Colonel Pavel Doletskaya, who is transported to Guantanamo Bay for questioning about Russia's great plan to take over the world.

And I won't say more than that.

So, there you go. That's my answer to your question, regarding how I get my information. All that I didn't learn from books, I researched. Gotta' do your homework if you want to be successful.

Let that be a lesson to you, kiddies.