"When you spend money on defense, on military solutions, it's like surgery. It's painful. It's high-risk. Things go wrong. When you spend money on diplomacy, with our wonderful foreign service officers, it's kind of like going to the clinic and using a variety of different drugs and physical therapy. And when you think about development and soft power, it's preventative medicine. It's those things like working out, taking an aspirin. It's low-cost, low pain, and yet it has long-term benefits. So any military person will tell you, use us as a last resort. Use surgery only when you have to. When you can, use preventative medicine - that's development - or diplomacy, but don't reach for that military instrument too soon.... Unequivocally, the most important ships that I deployed to Latin America and the Caribbean were not aircraft carriers, they were hospital ships. They conducted hundreds of thousands of patient treatments all over Central America, the Caribbean, South America."