To be on thread I note that if US military spending were reduced by 75% the deficit and budget problems would be solved and US still would spend more than any other country on defense! Plus its existing equipment is by far the world's most technically capable. The US's Industrial Military Complex eats up slightly more than 20% of ALL US government spending.
BRIEF SUMMARY: The US military is NOT defending the US -
It is destroying the US!
If China can enjoy great benefit of paying for imports with printed paper, as US was able to do for more than two decades, why wait three decade more to do so?
Or you can just look at how their defense budget as grown, their purchase of aircraft carriers, etc, to see that they also have 'Hawks' and a corrupt military industrial complex that wants money and power.
Yes growing but still a small fraction of the US Military Industrial Complex, MIC, funding. US's MIC rakes in more than the total of China and the next 15 largest spenders on defense.
Note China's GDP is slightly less than half that of the US's so if compared to US GDP, China spends ~0.5% of that on defense. Also note China has world's largest standing army that has value only for defense (or helping after earthquakes and floods, etc.) - that is the Chinese MIC's main cost / funding. Like their GPS design, which can not guide hostile missiles far from China, That is evidence of the defensive nature / goals / of their military. The US's GPS was designed by the military to be able to send a cruse missile thru ANY selected window on the other side of the world.
* China is building a "blue water" navy now, including air craft carriers as they have invested about half a trillion dollars in PAID UP FRONT,** future delivery (over up to 30 years) purchases of oil, minerals, timber, food stocks (including outright buying of farm land when they could plus large food processors, like world's largest pork seller, Smith Field hams, which, not too surprisingly announced yesterday that they were stopping to add something to the pig food that makes the meat leaner as they will export more to China, were the fatter the pig is the higher price per pound the customer will pay.) China probably will not need to overfly US or Brazil with fighter bombers to make sure those government deliver as contracted, but may need to do that with what ever regime in several African nations is thinking about welching on the delivers. - Why China will have five aircraft carriers by ~2020.
** China was smart and expected the dollar to crash, as I have, so they converted that half trillion of dollar assets into purchases of real value (not paper promise) items.
The contract with Brazil's PetroBras was an earlier significant one: China paid 10 billion dollars for the promise of 200,000 barrels of oil delivered every day (on average) for 20 years.
Because of sanctions on Iran, China is paying for many (I don't know details) years of oil by building two of the world's largest and most modern oil refineries there. Oil rich Iran has none. Must import every drop of gasoline and other refined products, now. This is a very good deal for both Iran and China, regardless of the details, but knowing how China "bargains," especially with Iran over a US made economic barrel, I sure much more so for China
It is rather ironic that the main benefits of US blood and treasure spent in the Mid East Gulf region is resulting in benefits for Iran and China. Just as I predicted before GWB invaded Iraq - the Shiite government there is already the "Northern Provence" of Iran as I forecast, but my forecast that NE Iraq would be come "Kirdistan" causing great trouble for US / Nato ally Turkey is not yet fully fulfilled.