"We must deal a serious blow to the hostile forces who are mistakenly determined to bring us down with sanctions by advancing the socialist construction to a high level of self-reliance that fits our circumstances and state, based on our own power, technology and resources", Kim was quoted by KCNA as saying, according to Reuters.
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North Korea is reportedly expected to convene a session of its legislature, the Supreme People's Assembly, on Thursday, while US President Donald Trump is expected to hold a summit with South Korean President Moon Jae-in later on the same day.
Kim has also held two meetings with Trump, with the parties having reached an agreement in June, stipulating that North Korea would make efforts to promote complete denuclearization of the peninsula in exchange for US-South Korean military drills' freeze and a potential removal of US sanctions. However, the second Trump-Kim summit held in February ended with no new agreements.
Immediately after the summit, North Korean Foreign Minister Ri Yong Ho said that Pyongyang would have dismantled all of its nuclear material if the United States had only removed restrictions partially.
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The outlet also noted that satellite images obtained via Google Earth on March 2 showed objects that looked like bulkheads of the presumably constructed submarine. The newspaper stressed that no such objects could be seen in the area last August.
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