Once a year I watch this video for inspiration. Not as much for the military aspect as an example of how to overcome obstacles in life. Look past the agression and you will see young men embracing not-knowing on a moment by moment basis and expressing what arises authentically. This is the closest any modern military training method has approached the Bushido Code of the Samuari. There is Zen here, can you find it?
Unify your body, mind, spirit and passions into a happy, healthy and successful life without becoming someone else