Sharing the Discipline Responsibilities...Our Never-ending Battle!

I don't know about you but here at our house sharing the responsibility of disciplining our 7 children is almost impossible. My husband is Active Duty National Guard and is gone probably close to 90% of the time, leaving me to basically raise the kids on my own for the most part. I'm cool with that...after 16 years of marriage you learn to work these things out BUT...sometimes we don't agree on how to discipline the children. He wants to have his say because he's the head of the family, and I completely respect that, but I'm with the kids the most and know them better and what works and what doesn't.  I know I'm not the only one with this dilemma so I'm putting this out there...How do you solve this problem in your families? How do you find that balance that I seem to be missing? I'd love to hear your thoughts! Thanks!