SEOUL, Sept. 23 (Yonhap) -- The following are key developments regarding North Korea this week.
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Sept. 19 -- JCS chief warns N.K. regime cannot survive in case of nuclear use attempt
20 -- Chief of N. Korea's minor political party dies: state media
U.S. made dialogue offer to N. Korea in July, no response yet: envoy
21 -- In letter to Xi, N. Korean leader highlights strong bilateral ties against 'hostile forces'
Satellite imagery suggests N. Korea may be preparing to launch new submarine: 38 North
22 -- N. Korea's military denies exporting weapons, ammo to Russia
S. Koreans grow more skeptical of N. Korea's denuclearization: survey
23 -- U.S. stands by earlier intelligence on Russian request for N. Korean ammunition: Pentagon
-- S. Korean gov't calls on activists to refrain from sending leaflets to N.K.
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