The majority of US citizens are opposed to military action in North Korea. However, a substantial proportion is prepared to go to war, according to a survey by Japanese think tank Genron NPO and the University of Maryland. Donald Trump on Thursday said he was “very disappointed that China is allowing oil to go into North Korea” and said such moves would prevent “a friendly solution” to the crisis over Pyongyang’s nuclear program. Also on Thursday, China denied that it is violating UN sanctions by selling oil to North Korean vessels after reports that Chinese ships suspected of carrying out the illegal trade were seen in the Yellow Sea.