The United States and China have expressed their desire to work together to get North Korea to give up its nuclear ambitions. Just how the two will do that remains uncertain. North Korea topped the agenda during a visit by the top U.S. diplomat to Beijing on Saturday, the Voice of America reports.U.S. Secretary of State John Kerry says both Beijing and Washington support the goal of a denuclearized Korean peninsula.“China and the United States today recommitted to find a peaceful solution and we say to Kim Jung Un and to the government of the DPRK, they have an obvious choice here – which is to join us to try and find a negotiated resolution. Regardless of what they do, we will continue to fight for that,” he said. Kerry has been urging Chinese officials to use their influence as the North’s biggest ally to get it to pull back from its provocations.