Reddit reviews The Bear Went Over the Mountain: Soviet Combat Tactics in Afghanistan

The Bear Went Over the Mountain by Lester Grau was mandatory reading at officer basic. It gives insight into tactics used by the Soviets in Afghanistan, what worked, what did not.

http://www.amazon.com/gp/product/B008F06UIS/ref=dp-kindle-redirect?ie=UTF8&btkr=1

Depends on what you're looking for.

If you're looking for modern aerial warfare, the First Gulf War and the Invasion of Iraq are excellent. You can learn about the excellent performance of the A-10 and the risky introduction of the F-15E Strike Eagle in the First Gulf War. Lots of interesting stories of the Wild Weasels (Surface-to-Air Missile System Hunters) F-16s. Vietnam War has excellent infantry perspectives.

However, overall, my favorite conflict is the Russian invasion of Afghanistan. It really demonstrated how conventional warfare cannot be used to eradicate an insurgency. Plus, all the shady shit the CIA did to help the Mujahideen against the Russians (TL;DR: They gave them Stinger missiles that allowed them to cripple Russian helicopters, which were the most important tool the Russians had on their side). To get started, I'd recommend reading :

1. The Bear Went Over The Mountain by Lester W. Grau
   
   
2. The Other Side of the Mountain: Mujahideen Tactics in the Soviet-Afghan War by Lester W. Grau
   
   
3. The Limits of Soviet Airpower: The Failure of Military Coercion in Afghanistan, 1979-89 by Edward B. Westermann

The Bear Went Over the Mountain?

'Soviet Combat Tactics in Afghanistan' by Lester Grau

https://www.amazon.com/dp/B008F06UIS/ref=dp-kindle-redirect?_encoding=UTF8&btkr=1