US-Russian satellite found: the People's Liberation Army of 200,000 troops stationed in the China-DPRK border

Appeared in the Yalu River border the satellite analysis department of the United States and South Korea said, in the third underground nuclear test in North Korea, the presence of a large number of Chinese soldiers. The last time they make judgments accurate. This recently only a few dozen kilometers from the Chinese border. Russian media broke the news, a reorganization of the group army of Shenyang Military Region has suddenly stationed Yalu River border.
Why choose from so close in North Korea carried out a nuclear test? North Korea choose this location to give more consideration to the fear of being a US-South Korea and Japan's surgical strike. Near so close to a place in China, the United States, Japan, really want to get involved, you have to consider the impact of nuclear contamination, thereby increasing the concerns of the United States, Japan, from this point of view, the DPRK with the not China the security on the eyes.
Then North Korea has a nuclear test in the end of what harm?
To understand this point, it must be recalled that under the original intention of developing nuclear test in North Korea: North Korea nuclear technology research began in the late 1950s, according to the International Atomic Energy Agency reported. The mid-1960s, under the help of the Soviet Union, North Korea created the Yongbyon atomic energy research base, training a large number of nuclear technology talent. To know that North Korea's nuclear weapons from the Soviet Union to help, take a look at the point in time of the Soviet assistance to the DPRK, began after the Sino-Soviet relations become enemies assistance to North Korea, North Korea developed nuclear weapons in the first place, that is, the Soviet Union by encircling China with nuclear weapons, in this point North Korea and the Soviet Union have the same attitude, so the two hit it off.
Today, however, there is no change? It is reported that North Korea January 24, 2013, North Korea announced that it would carry out a third nuclear test, aimed at the "old enemy" the United States. North Korea, although the target aimed directly at the United States and North Korea's ballistic missile technology is simply immature, however, the real impact on the United States limited the DPRK satellite launch test twice in the second half of last year, there is a failure after many failures this North Korean nuclear bomb carrying technology does not pass, plus the United States has the world's most advanced missile defense system, even if North Korea have a nuclear bomb, it is difficult to deter the United States.
The United States is currently test airborne laser weapon destroyed ballistic missile technology, and that is to be destroyed from the initial launch phase. If North Korea to launch nuclear missiles from 70 kilometers away from the Chinese position, once the bomb was destroyed by the U.S. military, in case Zaigua the southeast wind, just a direct threat to China. North Korea, though nominally against the United States, but the objective has been serious damage to China's security.
North Korea's possession of nuclear weapons is a deterrent to China. Once North Korea's practices for dissatisfaction with Beijing, China to impose sanctions on North Korea, such as the reduction of the large-scale assistance, North Korea may start to deal with the killer, that North Korea near the Chinese border to conduct nuclear tests, and so do not need to launch ballistic missiles at can deterrent Chinese. Of course, toward nominally aimed at the United States, Japan and other countries, but in fact the implication is obvious, so that North Korea from developing nuclear weapons, nuclear blackmail against China to some extent.