No, this is general doctrine material. By necessity you need to teach a huge number of people in your army about your doctrine and how it works, so it's a reall

No, this is general doctrine material. By necessity you need to teach a huge number of people in your army about your doctrine and how it works, so it's a really hard secret to keep. And, if your doctrine doesn't work if the enemy knows about it, then it's not a very good doctrine. In the same way that if your encryption program is vulnerable if people can inspect the source code, your encryption program isn't very good. The only real risk is that your adversaries might "steal" your doctrine and use it to train their own troops. But generally a doctrine on its own isn't enough, you need an established tradition and officer corps, as well as the right tools and equipment to execute it properly. And those (especially a competent and well trained officer corps) are much harder to appropriate.