Lu said the parties concerned should learn from experience in reaching the agreement, which includes holding that the core of the Korean Peninsula nuclear issue is over security issues, the key lies with the United States and the DPRK, and concerns of all parties should be resolved in a balanced wayBEIJING -- China said Tuesday that the six-party talks are still an efficient platform to address the Korean Peninsula nuclear issue安信5Launched in 2003, the six-party talks were suspended in December 2008Lu said the joint statement, signed on Sept 19, 2005, is the most important progress in addressing the Korean Peninsula nuclear issue through negotiations, and is of milestone significanceChina also proposed a dual-track approach to denuclearization on the peninsula on the one hand and establishing a peace mechanism on the other安信5China has put forward the "double suspension" proposal, which requires the DPRK to suspend its missile and nuclear activities in exchange for the suspension of large-scale US-ROK military drills