Is there currently any political friction between China and North Korea?
Yes, the conflicts between these two countries exist.
It has been decades since American bombs rocked Dandong, the
main crossing on the 800-mile Chinese-North Korean border. But this
week another explosion shook China and the new threat is from its
old ally. North Korea's nuclear test has raised tensions throughout
the region - and increased pressure on China to rein in its
neighbour.
China provides as much as 90% of the North's energy and 40% of
its food. Like Russia, it has used its security council veto
against attempts to isolate Pyongyang. Without its support, its
poor neighbour would struggle to survive.
But now it appears that the North may be exhausting Beijing's
patience. This week's nuclear and missile tests, last month's
rocket launch, increasing threats and the suspected restarting of
the Yongbyon nuclear plant have reignited debate about how best to
deal with a troublesome neighbour.
Beijing was swift to slap down the nuclear test in a rare act of
public criticism and the US appears hopeful that it will sign a
security council resolution toughening existing sanctions - agreed
in 2006, but only loosely enforced.
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