South Korea and the United States held simulation drills to enhance nuclear deterrence cooperation in Washington this week, Seoul's defense ministry said Friday, as the allies are stepping up security coordination to counter evolving North Korean threats. Seoul and Washington held the first table top simulation (TTS) of the Nuclear Consultative Group (NCG), the allies' key nuclear deterrence dialogue body, on Thursday and Friday, it said in a press release. "NCG TTS contributes greatly to the execution of NCG tasks by strengthening the alliance's approach for cooperative decision-making related to nuclear deterrence and nuclear planning in the event of potential nuclear crisis on the Korean Peninsula," it said. Seoul and Washington launched the NCG in July last year in line with the Washington Declaration that President Yoon Suk Yeol and U.S. President Joe Biden issued at their summit in April last year to strengthen the credibility of America's "extended deterrence" commitment to using the full range of its capabilities, including nuclear, to defend its ally. Source: Yonhap News Agency