Satellite imagery shows North Korea preparing for another nuclear test
The Washington Post while quoting Jon Wolfsthal, a senior nonproliferation adviser in the Obama administration who is now at the Carnegie Endowment for International Peace said, "They are trying to get a working arsenal, so the more they test, the more they learn. It's likely that they're trying to make a device small enough to achieve their goal of putting a nuclear warhead on a long-range missile," Wolfsthal said.
North Korea has often put up a performance for the satellites. It has been considered to be a ploy to escalate tension. North Korea has always made public its desire to make progress on its nuclear programmes. It has also said that it wished to built a missile capable of reaching the United States of America.
North Korea has also been launching medium and intermediate-range missiles apart from testing rockets. The country has often bragged about its progress with nuclear tests. In September last North Korea said that it had sucessfully miniaturised a warhead.