http://www.dw.com/en/russia-steps-up-north-korea-support-to-constrain-us/a-38867861
Despite efforts by the United Nations to impose isolating sanctions on North Korea in response to the country's continued development of nuclear weapons and intercontinental ballistic missiles, trade between Russia and North Korea soared more than 85 percent in the first four months of the year.
Citing Russian customs data, the Voice of America broadcaster has reported that bilateral trade climbed to $31.83 million (29 million euros) in the January-March quarter, with the vast majority being energy products going over the border into the North.
This included $22 million worth of coal, lignite with a value of around $4.7 million, and oil estimated at $1.2 million. In return, North Korean exports to Russia were estimated to be worth $420,000. The most significant exports were chemicals and - curiously - wind instruments.
China trade falls
In contrast, North Korea's trade with China, traditionally its most important economic partner, has plummeted. Pyongyang's exports of coal to China in March came to 6,342 tons, a fraction of the 1.44 million tons sent to China in January, with an estimated value of $126.39 million. Similarly, Beijing has stopped supplying critically-needed fuel oil to the North, a clear demonstration of China's displeasure at North Korea's ongoing weapons tests.
The release of the figures detailing Russia's increased trade with North Korea coincide with President Vladimir Putin statement on Monday that Pyongyang's latest missile launch was "dangerous" - but, he added, "We must stop intimidating North Korea and find a peaceful solution to this problem."
Read more: North Korea claims successful test of new rocket able to carry nuclear warhead
James Brown, an associate professor of international relations at Tokyo campus of Temple University, believes some of the cross-border trade may be "economic opportunism" but the motivation for the vast majority of it is geopolitical.
"Russia is very worried about the isolation of North Korea and believes that makes the situation dangerous as the US is taking a confrontational approach," he told DW.
"Moscow's position is that pressure on the North has not worked and has in fact caused Pyongyang to react because it feels threatened," he said. "So instead of isolation, which is not working, Russia is proposing engagement."