Trump – North Korea showing disrespect to China?

This was
what Trump said about the recent spate of North Korean missile tests. So, is
Trump trying his boyish trick of driving a wedge between China and North Korea?
What is so wrong or so provocative of the North Korean testing their own
weapons to defend themselves against the constant provocations by the Americans,
the biggest bully in the world? Who is threatening or provoking who? Is