tajemnica wojskowa

Until then we will exchange our experience and military secrets.

The event was not publicized until many years later, as it had been a military secret.

At the time, the United States use of the base was considered to be a military secret.

Every country has a right to protect its military secrets.

It's a military secret, but everyone round here seems to know it.

Everything else was what they called a military secret.

For all he knows, I could be offering him useful information, maybe even military secrets!

She didn't answer at all; no, we weren't going to get any military secrets out of her.

What Bob will tell you is the top military secret of the system.

That had been a carefully guarded military secret, and his father hadn't even told him.