In conjunction with our series on the U.S. Military and Energy we're launching a new widget we call "The Big Question." Check it out, join the conversation, and ask "The Big Question" on your website.

Plus, browse the stories in our special series: U.S. Military and Energy, meet characters from the stories, and learn about the Pentagon's quest to "unleash us from the tether of fuel."

In the first story in our series, we look at how the U.S. Navy is setting sail with a hybrid. We also explore how the military is looking to cut its addiction to oil, and how Marines are using solar power in Afghanistan. In the final story in our series, we look at how new innovations created from the military will affect you and me.

Join in on our conversation and let us know: Should the U.S. military spend big to go green? Let us know what you think in our new widget and ask "The Big Question" on your own site.

Follow Adriene Hill at @adrienehill