Group 1 - The World Health Organization (WHO) has expressed concerns about the risks of radioactive nuclear contamination and environmental pollution due to attacks on nuclear facilities and oil fields in the Middle East [3][5] - WHO's Eastern Mediterranean Regional Director, Hanan Balkhy, stated that UN personnel are monitoring the consequences of attacks on Iranian nuclear facilities and remain vigilant against any nuclear threats [5] - Since 2008, WHO has included radioactive nuclear hazards in the International Health Regulations (2005), requiring countries to meet core national capacity requirements related to radiation emergencies [5] Group 2 - The WHO disclosed that over 20,000 individuals were diagnosed with thyroid cancer and received treatment following the 1986 Chernobyl nuclear disaster [5] - Amid escalating tensions in the Middle East, Chinese Foreign Minister Wang Yi emphasized the need for all parties to cease military actions and resolve differences through dialogue to maintain regional peace and stability [5] - China's special envoy for Middle East issues, Zhai Jun, has been visiting multiple countries in the region, indicating that diplomatic efforts will continue as long as the conflict persists [5]