I am trying to remember the name of a WWII fiction book. In it, Hitler actually escapes from his bumker with the help of some special forces guys and is chased by a similar group of Russians army guys. In the end, Hitler ends up in a cage in Stalin's office. It's a great novel and would like to read it again.

I believe it's The Berkut, by Joseph Heywood.

That's it! Thank you very much.