{"id":49461,"date":"2017-09-18T20:10:54","date_gmt":"2017-09-18T20:10:54","guid":{"rendered":"https:\/\/one.sightlinemg.com\/airforcetimes\/uncategorized\/2017\/09\/18\/mattis-use-of-tactical-nuclear-weapons-discussed-with-south-korea\/"},"modified":"2026-08-08T07:54:37","modified_gmt":"2026-08-08T07:54:37","slug":"mattis-use-of-tactical-nuclear-weapons-discussed-with-south-korea","status":"publish","type":"post","link":"https:\/\/one.sightlinemg.com\/airforcetimes\/flashpoints\/2017\/09\/18\/mattis-use-of-tactical-nuclear-weapons-discussed-with-south-korea\/","title":{"rendered":"Mattis: Use of tactical nuclear weapons discussed with South Korea"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">WASHINGTON \u2013 Defense Secretary Jim Mattis confirmed Monday that the U.S. and South Korea have discussed employing tactical nuclear weapons as an option to defend against North Korea\u2019s nuclear weapons program.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The acknowledgment from Mattis comes as the U.S. and international community grapple with increasingly aggressive nuclear weapons testing by North Korea.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">In the last few weeks, North Korea has tested an intercontinental ballistic missile capable of reaching the U.S. mainland and tested a hydrogen bomb, according to U.S. Strategic Command\u2019s assessment of the program.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Last Thursday, as Mattis was at STRATCOM assessing the U.S. nuclear posture, North Korea fired another intermediate range missile over Japan, sending millions of Japanese citizens into shelters.<\/p>\n\n\n\t<aside class=\"smg-interstitial-link wp-block-smg-interstitial-link\">\n\t\t<a href=\"https:\/\/one.sightlinemg.com\/militarytimes\/flashpoints\/2017\/09\/14\/stratcom-assesses-that-north-korea-now-has-the-hydrogen-bomb-as-country-conducts-another-launch\/\" class=\"smg-interstitial-link__inner\">\n\t\t\t\t\t\t\t<div class=\"smg-interstitial-link__media\">\n\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"300\" height=\"205\" src=\"https:\/\/one.sightlinemg.com\/wp-content\/uploads\/2026\/08\/AP_17242371176015.jpg.jpg?w=300\" class=\"smg-interstitial-link__image wp-post-image\" alt=\"\" \/>\t\t\t\t<\/div>\n\t\t\t\t\t\t<div class=\"smg-interstitial-link__content\">\n\t\t\t\t<span class=\"smg-interstitial-link__kicker\">Related<\/span>\n\t\t\t\t<h3 class=\"smg-interstitial-link__title\">US military assesses North Korea tested H-bomb as country conducts another launch<\/h3>\n\t\t\t\t\t\t\t\t\t<p class=\"smg-interstitial-link__excerpt\">The Sept. 3 North Korean test had the signature and size of a hydrogen bomb, Gen. Hyten said.<\/p>\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/a>\n\t<\/aside>\n\t\n\n\n<p class=\"wp-block-paragraph\">On Monday, Mattis said there are military options to use against North Korea that would not result in mass casualties for Seoul, but he would not go into specifics.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">South Korean Defense Minister Song Young-moo told his parliament he had requested the U.S. consider the return of tactical nuclear weapons to the Korean Peninsula during a U.S. visit with Mattis earlier this month.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">On Monday, Mattis confirmed the exchange, but did not provide further details.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u201cWe discussed the option,\u201d Mattis told reporters at the Pentagon.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u201cWe have open dialogue with our allies on any issue they want to bring up.\u201d<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"2048\" height=\"1363\" src=\"\/wp-content\/uploads\/2026\/08\/37040588516_deb0ad163f_k.jpg.jpg\" alt=\"\" class=\"wp-image-89745\" srcset=\"https:\/\/one.sightlinemg.com\/wp-content\/uploads\/2026\/08\/37040588516_deb0ad163f_k.jpg.jpg 2048w, https:\/\/one.sightlinemg.com\/wp-content\/uploads\/2026\/08\/37040588516_deb0ad163f_k.jpg.jpg?resize=300,200 300w, https:\/\/one.sightlinemg.com\/wp-content\/uploads\/2026\/08\/37040588516_deb0ad163f_k.jpg.jpg?resize=768,511 768w, https:\/\/one.sightlinemg.com\/wp-content\/uploads\/2026\/08\/37040588516_deb0ad163f_k.jpg.jpg?resize=1024,682 1024w, https:\/\/one.sightlinemg.com\/wp-content\/uploads\/2026\/08\/37040588516_deb0ad163f_k.jpg.jpg?resize=1536,1022 1536w\" sizes=\"auto, (max-width: 2048px) 100vw, 2048px\" \/><figcaption class=\"wp-element-caption\">Secretary of Defense Jim Mattis speaks with members of the U.S. Strategic Command during his visit to Offutt Air Force Base, Neb., Sept. 14, 2017. (Air Force Staff Sgt. Jette Carr\/DoD)<\/figcaption><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">However, the risk of reintroducing the weapon to the peninsula could be grave, said Air Force Gen. John Hyten, STRATCOM commander, who met with reporters during Mattis\u2019 visit.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u201cI think it is actually a very dangerous term to use, because I think every nuclear weapon that is employed is strategic,\u201d <\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The U.S. has around 500 B-61 low-yield, or \u201ctactical\u201d nuclear gravity bombs \u2015&nbsp;some with yields as small as 0.3 kilotons in their arsenal, said James McKeon, a nuclear weapons analyst for the Center for Arms Control and Non-Proliferation.<\/p>\n\n\n\t<aside class=\"smg-interstitial-link wp-block-smg-interstitial-link\">\n\t\t<a href=\"https:\/\/one.sightlinemg.com\/defensenews\/smr\/space-missile-defense\/2017\/08\/17\/us-should-consider-no-fly-zone-for-north-korea-missile-tests-commentary\/\" class=\"smg-interstitial-link__inner\">\n\t\t\t\t\t\t\t<div class=\"smg-interstitial-link__media\">\n\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"300\" height=\"187\" src=\"https:\/\/one.sightlinemg.com\/wp-content\/uploads\/2026\/08\/GettyImages-824113236.jpg.jpg?w=300\" class=\"smg-interstitial-link__image wp-post-image\" alt=\"\" \/>\t\t\t\t<\/div>\n\t\t\t\t\t\t<div class=\"smg-interstitial-link__content\">\n\t\t\t\t<span class=\"smg-interstitial-link__kicker\">Related<\/span>\n\t\t\t\t<h3 class=\"smg-interstitial-link__title\">US should consider no-fly zone for North Korea missile tests [Commentary]<\/h3>\n\t\t\t\t\t\t\t\t\t<p class=\"smg-interstitial-link__excerpt\">A multilayered missile defense setup could well be enough to give North Korea pause before trying to test launch a missile.<\/p>\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/a>\n\t<\/aside>\n\t\n\n\n<p class=\"wp-block-paragraph\">However, it\u2019s not the size that determines their tactical or strategic status, McKeon said. The bombs are tactical \u2015&nbsp;and not governed by the 2010 new Strategic Arms Reduction Treaty, or START treaty \u2015&nbsp;if they are delivered on a tactical aircraft, such as an F-16 or F-15 fighter jet, McKeon said.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The weapons become strategic if delivered via on of the nation\u2019s strategic assets, such as the B-2 or B-52 nuclear-capable bombers.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"2048\" height=\"1365\" src=\"\/wp-content\/uploads\/2026\/08\/37166335531_85d46737c0_k.jpg.jpg\" alt=\"\" class=\"wp-image-18725\" srcset=\"https:\/\/one.sightlinemg.com\/wp-content\/uploads\/2026\/08\/37166335531_85d46737c0_k.jpg.jpg 2048w, https:\/\/one.sightlinemg.com\/wp-content\/uploads\/2026\/08\/37166335531_85d46737c0_k.jpg.jpg?resize=300,200 300w, https:\/\/one.sightlinemg.com\/wp-content\/uploads\/2026\/08\/37166335531_85d46737c0_k.jpg.jpg?resize=768,512 768w, https:\/\/one.sightlinemg.com\/wp-content\/uploads\/2026\/08\/37166335531_85d46737c0_k.jpg.jpg?resize=1024,683 1024w, https:\/\/one.sightlinemg.com\/wp-content\/uploads\/2026\/08\/37166335531_85d46737c0_k.jpg.jpg?resize=1536,1024 1536w\" sizes=\"auto, (max-width: 2048px) 100vw, 2048px\" \/><figcaption class=\"wp-element-caption\">U.S. Air Force B-1B Lancer bombers flanked by U.S. Marine Corps F-35 Lightning II and Japan Air Self-Defense Force F-2 fighters execute a bilateral mission over the Pacific Ocean on Sept. 18, 2017, demonstrating the United States&#8217; ironclad commitment to our allies in the face of aggressive and unlawful North Korean missile tests. This mission was conducted in direct response to North Korea&#8217;s intermediate range ballistic missile launch, which flew directly over northern Japan on September 14. (Staff Sgt. Steven Schneider\/Army)<\/figcaption><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Tactical nuclear weapons were removed from the South Korean Peninsula in 1991 in a previous attempt to get North Korea to abandon its nuclear weapons program.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">To Hyten, the weapons are the same regardless of delivery or yield, because of the risk that North Korea would also choose to employ a low-yield device and bring both nations into an escalated, nuclear conflict.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u201cTo call it a tactical weapon brings into the possibility that there could be a nuclear weapon employed on a battlefield for a tactical effect,\u201d Hyten said. \u201cIt\u2019s not a tactical effect. If somebody deploys what is a non-strategic nuclear weapon or a tactical nuclear weapon, the United States will respond strategically, not tactically because they have now crossed a line \u2015&nbsp;a line that hasn\u2019t been crossed since 1945.\u201d<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><a><i>Tara Copp is Pentagon bureau chief for the Military Times. Email: Tcopp@mco.com. On Twitter: @TaraCopp<\/i><\/a><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><br\/><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Discussion comes as US, international community look at all options to stop North Korea&#8217;s nuclear weapons program.<\/p>\n","protected":false},"author":7,"featured_media":44205,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_yoast_wpseo_meta-robots-noindex":"","_yoast_wpseo_meta-robots-nofollow":"","_yoast_wpseo_canonical":"","_acf":"","_yoast_wpseo_primary_category":13,"_jetpack_feature_clip_id":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","_smg_distribution_targets":[]},"categories":[101,13,16,26,65],"tags":[],"coauthors":[3350],"class_list":["post-49461","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-daily-news-roundup","category-flashpoints","category-news","category-newsletters","category-pentagon-congress"],"acf":{"subheadline":"","legacy_arc_id":"XH3XOYQNMJBRJPAC4G7K2TYLUQ","arc_canonical_url":"\/news\/your-military\/2017\/09\/18\/mattis-use-of-tactical-nuclear-weapons-discussed-with-south-korea\/","remove_feature_photo":false,"is_sponsored":false,"subtype":"","redirect_url":"","disable_inline_ads":false,"native_logo_pretext":"Presented 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