{"id":124622,"date":"2026-03-14T10:07:52","date_gmt":"2026-03-14T10:07:52","guid":{"rendered":"https:\/\/pressactu.com\/?p=124622"},"modified":"2026-03-14T10:07:52","modified_gmt":"2026-03-14T10:07:52","slug":"dissuasion-nucleaire-pourquoi-quelques-kilos-duranium-peuvent-peser-sur-lequilibre-mondial","status":"publish","type":"post","link":"https:\/\/pressactu.com\/?p=124622","title":{"rendered":"Dissuasion nucl\u00e9aire\u00a0: pourquoi quelques kilos d\u2019uranium peuvent peser sur l\u2019\u00e9quilibre mondial"},"content":{"rendered":"<div auto_robot_readability=\"46.564102564103\">\n                          <!-- partials\/article\/hook_media--standard.volt --><\/p>\n<figure class=\"hook-media--standard \" auto_robot_readability=\"-23.5\">\n    <picture class=\"hook-media_picture pb-8\"><source media=\"(max-width: 768px)\" srcset=\"https:\/\/focus.nouvelobs.com\/2026\/03\/11\/370\/0\/3509\/3509\/375\/375\/75\/0\/7e18714_upload-1-rafzzkbvs7io-049-f0113261.jpg 1x,https:\/\/focus.nouvelobs.com\/2026\/03\/11\/370\/0\/3509\/3509\/750\/750\/50\/0\/7e18714_upload-1-rafzzkbvs7io-049-f0113261.jpg 2x\" width=\"375\" height=\"375\"><img fetchpriority=\"high\" decoding=\"async\" class=\"mx-auto\" src=\"data:image\/svg+xml,%3Csvg%20xmlns%3D%27http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%27%20fill%3D%22%23e4e4e4%22%20viewBox%3D%270%200%20510%20510%27%20width%3D%22510%22%20height%3D%22510%22%3E%3Cpath%20d%3D%27M0%200h510v510H0z%27%2F%3E%3C%2Fsvg%3E\" srcset=\"https:\/\/focus.nouvelobs.com\/2026\/03\/11\/370\/0\/3509\/3509\/510\/510\/75\/0\/7e18714_upload-1-rafzzkbvs7io-049-f0113261.jpg 1x,https:\/\/focus.nouvelobs.com\/2026\/03\/11\/370\/0\/3509\/3509\/1020\/1020\/50\/0\/7e18714_upload-1-rafzzkbvs7io-049-f0113261.jpg 2x\" loading=\"eager\" width=\"510\" height=\"510\" data-oncrawl-image-size=\"510x510\" alt=\"Explosion d\u2019une bombe nucl\u00e9aire, illustration informatique.\"\/>      <\/source><\/picture><figcaption class=\"hook-media_figcaption\" auto_robot_readability=\"-22\">\n<p class=\"latino-100m text-grey-600\">\n            Explosion d\u2019une bombe nucl\u00e9aire, illustration informatique.\u00a0<span class=\"text-grey-600 ms-4\">MOPIC\/SCIENCE PHOTO LIBRARY VIA AFP<\/span>        <\/p>\n<\/figcaption><\/figure>\n<p>            <!-- partials\/article\/actions\/toolbar --><\/p>\n<div class=\"article__share d-flex align-items-center py-24 border-bottom  mb-32\" style=\"--border-color:#D9D9D9;\">\n<div class=\"d-flex flex-wrap gap-16\" auto_robot_readability=\"5.4705882352941\">\n<p>          <!-- partials\/article\/actions\/gift.volt --><\/p>\n<p>          <!-- partials\/article\/actions\/comment.volt --><\/p>\n<p>  <button data-article-key=\"20260313.OBS113153\" aria-label=\"Lire\u00a0plus\u00a0tard\" data-section=\"Sciences\" data-piano=\"Page_Article,Sous_date_publi,A_lire_plus_tard,1er_clic,action\" class=\"popover-trigger btn--tertiary btn--icon-only btn btn--small btn--secondary read-later\"><br \/>\n    <i class=\"icon  icon-read-after\" aria-hidden=\"true\"\/><br \/>\n          <span class=\"latino-300r mt-2 \"><br \/>\n        Lire\u00a0plus\u00a0tard      <\/span><br \/>\n      <\/button><\/p>\n<p><a aria-label=\"Nous suivre sur Google News\" href=\"https:\/\/news.google.com\/publications\/CAAqBwgKMJe4nQkw3dFs?hl=fr&amp;gl=FR&amp;ceid=FR%3Afr\" target=\"_blank\" data-piano=\"Page_Article,Sous_date_publi,Nous_suivre_sur_google_news,1er_clic,action\" class=\"btn btn--small btn--tertiary btn--icon-only\"><br \/>\n        <svg class=\"icon icon--google  \" style=\"--fill:#56668A\">\n              <use href=\"\/bucket\/resources\/web\/img\/e86dad2a9be111d0faac.svg#google\"\/><\/p>\n<p>  <\/svg><br \/>\n      <span class=\"latino-300r mt-2 \">Google Actualit\u00e9s<\/span><br \/>\n  <\/a><\/p>\n<p>          <!-- partials\/article\/actions\/hook_action--share.volt --><br \/>\n<button id=\"share\" aria-label=\"Partager\" class=\"popover-trigger btn btn--small btn--tertiary btn--icon-only\" data-piano=\"Page_Article,Sous_date_publi,Partager,1er_clic,action\"><br \/>\n        <svg class=\"icon icon--share-alt  \" style=\"--fill:var(--base-foreground-color,#171717)\">\n              <use href=\"\/bucket\/resources\/web\/img\/e86dad2a9be111d0faac.svg#share-alt\"\/><\/p>\n<p>  <\/svg><br \/>\n  <span class=\"latino-300r mt-2\">Partager<\/span><br \/>\n<\/button><\/p>\n<div id=\"popover-share\" data-url=\"https:\/\/www.nouvelobs.com\/sciences\/20260313.OBS113153\/dissuasion-nucleaire-pourquoi-quelques-kilos-d-uranium-peuvent-peser-sur-l-equilibre-mondial.html\" data-id=\"20260313.OBS113153\" data-popover-for=\"share\" class=\"popover p-32\" role=\"tooltip\" style=\"width: 375px\" auto_robot_readability=\"7\">\n<p>\n          <button onclick=\"setToFacebook();\" class=\"btn btn--large btn--secondary\" aria-label=\"Facebook\" piano-context-origin=\"Page_Article,Sous_date_publi,Partager,Facebook,action\"><br \/>\n              <svg class=\"icon icon--facebook  \" style=\"--fill:var(--base-foreground-color,#171717)\">\n              <use href=\"\/bucket\/resources\/web\/img\/e86dad2a9be111d0faac.svg#facebook\"\/><\/p>\n<p>  <\/svg><br \/>\n        <span class=\"latino-300r\">Facebook<\/span><br \/>\n      <\/button><br \/>\n      <button onclick=\"setToBsky();\" class=\"btn btn--large btn--secondary\" aria-label=\"Bluesky\" piano-context-origin=\"Page_Article,Sous_date_publi,Partager,Bluesky,action\"><br \/>\n              <svg class=\"icon icon--bluesky  \" style=\"--fill:var(--base-foreground-color,#171717)\">\n              <use href=\"\/bucket\/resources\/web\/img\/e86dad2a9be111d0faac.svg#bluesky\"\/><\/p>\n<p>  <\/svg><br \/>\n        <span class=\"latino-300r\">Bluesky<\/span><br \/>\n      <\/button><br \/>\n      <button id=\"mail-button\" onclick=\"setToMail(true)\" class=\"btn btn--large btn--secondary\" aria-label=\"Mail\" piano-context-origin=\"Page_Article,Sous_date_publi,Partager,Email,action\"><br \/>\n              <svg class=\"icon icon--mail  \" style=\"--fill:var(--base-foreground-color,#171717)\">\n              <use href=\"\/bucket\/resources\/web\/img\/e86dad2a9be111d0faac.svg#mail\"\/><\/p>\n<p>  <\/svg><br \/>\n        <span class=\"latino-300r\">E-mail<\/span><br \/>\n      <\/button><br \/>\n      <button onclick=\"setToClipboard();\" class=\"copy-button btn btn--large btn--secondary\" aria-label=\"copier le lien\" piano-context-origin=\"Page_Article,Sous_date_publi,Partager,Copier_lien,action\"><br \/>\n              <svg class=\"icon icon--link  \" style=\"--fill:var(--base-foreground-color,#171717)\">\n              <use href=\"\/bucket\/resources\/web\/img\/e86dad2a9be111d0faac.svg#link\"\/><\/p>\n<p>  <\/svg><br \/>\n        <span class=\"latino-300r\">Copier le lien<\/span><br \/>\n      <\/button>\n      <\/p>\n<p>\n    <button id=\"share-mail-submit\" type=\"submit\" form=\"mail-form\" onclick=\"__forecast.collectShareMail()\" class=\"latino-300r btn btn--large btn--black btn--fit\"><br \/>\n      Envoyer<br \/>\n    <\/button>\n  <\/p>\n<\/div>\n<p>          <!-- app\/web\/views\/partials\/article\/actions\/subscribe.volt --><\/p>\n<p>            <span data-urlencode=\"L2Fib25uZW1lbnQtbXVuaWNpcGFsZXMtMjAyNg==\" data-piano=\"Page_Article,Sous_date_publi,S_abonner_Municipales2026,1er_clic,action\" data-batch=\"clic_s_abonner\" class=\"btn btn--small btn--conversion-secondary\" style=\"--btn-color:#FFF;--btn-color-hover:#FFF;--btn-bg:#522DF7;--btn-bg-hover:#522DF7;--btn-bg-focus:#522DF7;--btn-border-color:#522DF7;\"><br \/>\n      S\u2019abonner pour lire    <\/span><\/p><\/div>\n<\/div>\n<p>            <!-- partials\/article\/contextual_blocks.volt --><\/p>\n<p>        <!-- partials\/article\/node.volt --><br \/>\n<!-- partials\/article\/node_text.volt --><\/p>\n<p class=\"node__paragraphe antonia-750r text-grey-800 pb-24 pb-md-32\">\nTout le monde est arm\u00e9 mais, en principe, personne ne tire. C\u2019est sur ce postulat que repose <a href=\"https:\/\/www.nouvelobs.com\/monde\/20260304.OBS112878\/dissuasion-nucleaire-avancee-ce-n-est-pas-un-changement-de-doctrine-on-reste-dans-l-ambiguite-strategique.html\">la dissuasion nucl\u00e9aire<\/a> depuis la fin de la Seconde Guerre mondiale. Au fil des d\u00e9cennies, de plus en plus de pays ont acquis \u00ab\u00a0la\u00a0\u00bb bombe, mena\u00e7ant de faire du prochain conflit mondial, s\u2019il a lieu, une d\u00e9flagration nucl\u00e9aire. Depuis 1968, le trait\u00e9 sur la non-prolif\u00e9ration des armes nucl\u00e9aires (TNP) vise \u00e0 pr\u00e9venir la propagation des armes de ce type et \u00e0 promouvoir le d\u00e9sarmement. Une mission principalement assur\u00e9e par l\u2019Agence internationale pour l\u2019Energie atomique (AIEA).<\/p>\n<p>            <!-- partials\/article\/node.volt --><br \/>\n<!-- partials\/article\/node_text.volt --><\/p>\n<p class=\"node__paragraphe antonia-750r text-grey-800 pb-8\">\nEn f\u00e9vrier 2026, c\u2019est pourtant bien la pr\u00e9vention de l\u2019acc\u00e8s \u00e0 l\u2019arme nucl\u00e9aire qui fait partie des objectifs affich\u00e9s par Donald Trump lors du lancement de la guerre d\u2019Iran. Au c\u0153ur des inqui\u00e9tudes\u00a0: le stock de 450\u00a0kilogrammes d\u2019uranium enrichi pr\u00e9sents sur le territoire iranien. Pourquoi s\u2019inqui\u2026<\/p>\n<p>            <!-- app\/web\/views\/partials\/walls\/paywall-web.volt --><\/p>\n<div class=\"paywall2025 d-flex flex-column mb-8 flash-offer\" auto_robot_readability=\"7\">\n<div class=\"oreillette d-flex justify-content-center align-items-center py-4 rounded-top-15\" auto_robot_readability=\"32\">\n<p class=\"latino-100m text-blue-400\">Article r\u00e9serv\u00e9 aux abonn\u00e9s.<\/p>\n<p>              <span class=\"latino-100m ps-8 text-decoration-underline text-blue-400\" style=\"cursor: pointer;\" data-piano=\"paywall_Municipales26_anonymes,,,se_connecter,navigation\" data-urlencode=\"aHR0cHM6Ly9zZWMubm91dmVsb2JzLmNvbS9zZnVzZXIvY29ubmV4aW9uP3JlZGlyZWN0aW9uVXJsPWh0dHBzJTNBJTJGJTJGd3d3Lm5vdXZlbG9icy5jb20lMkZzY2llbmNlcyUyRjIwMjYwMzEzLk9CUzExMzE1MyUyRmRpc3N1YXNpb24tbnVjbGVhaXJlLXBvdXJxdW9pLXF1ZWxxdWVzLWtpbG9zLWQtdXJhbml1bS1wZXV2ZW50LXBlc2VyLXN1ci1sLWVxdWlsaWJyZS1tb25kaWFsLmh0bWw=\"><br \/>\n        Se connecter      <\/span>\n      <\/div>\n<div class=\"paywall-body d-flex flex-column flex-grow-1 justify-content-center p-8 p-md-16 rounded-bottom-15\" auto_robot_readability=\"32\">\n<p class=\"title text-center antonia-1850c\" style=\"margin-bottom:4px;\">Offre sp\u00e9ciale<\/p>\n<p class=\"description pb-8 pb-md-16 antonia-800c text-center\">Tous nos contenus exclusifs en acc\u00e8s illimit\u00e9<\/p>\n<div class=\"d-flex flex-wrap flex-column column-gap-16 justify-content-center align-items-center\">\n<div class=\"actions d-flex flex-column flex-md-row gap-8 gap-md-16 justify-content-center align-items-center w-100 pb-8 pb-md-16\">\n                  <span class=\"latino-100b latino-lg-300b btn btn--large btn--conversion-primary main-cta\" style=\"line-height:1;text-align:center!important;\" onclick=\"return window.pa.sendEvent('self_promotion.click', {&#10;                'onsitead_type': 'Self promotion',&#10;                'onsitead_campaign': 'Article Teaser Municipales 2026',&#10;                'onsitead_format':'Sciences::Sciences::20260313.OBS113153_Dissuasion_Nucleaire_Pourquoi_Quelques_Kilos_D_Uranium_Peuvent_Peser_Sur_L_Equilibre_Mondial'&#10;              });\" data-urlencode=\"aHR0cHM6Ly9tYWNvbW1hbmRlLm5vdXZlbG9icy5jb20vYWNjb3VudC9jcmVhdGUvMjMzNzguMzY0OTgvMjI5MjQuMzYxODY\/YXJ0aWNsZT1odHRwcyUzQSUyRiUyRnd3dy5ub3V2ZWxvYnMuY29tJTJGc2NpZW5jZXMlMkYyMDI2MDMxMy5PQlMxMTMxNTMlMkZkaXNzdWFzaW9uLW51Y2xlYWlyZS1wb3VycXVvaS1xdWVscXVlcy1raWxvcy1kLXVyYW5pdW0tcGV1dmVudC1wZXNlci1zdXItbC1lcXVpbGlicmUtbW9uZGlhbC5odG1s\" role=\"button\"><br \/>\n            <span>S\u2019abonner\u00a0: <span class=\"text-decoration-line-through d-none d-md-inline\">7,99\u20ac <\/span>2,49\u20ac\/mois<\/span>                          <span class=\"cta_l2\">pendant 1 an<\/span>                      <\/span><\/p>\n<p class=\"or d-none d-md-flex\">ou<\/p>\n<p>                                    <button id=\"[&quot;essentiel_mensuel_0.99e3moisp7.99_swg&quot;,&quot;essentiel_annuel_29_99_swg&quot;]\" class=\"js-swg-activation swg-button text-center btn btn--large btn--swg\" aria-label=\"S'abonner avec Google\" style=\"cursor: pointer;\" onclick=\"ttq.track('AddToCart');return window.pa.sendEvent('self_promotion.click', {&#10;                    'onsitead_type': 'Self promotion',&#10;                    'onsitead_campaign': 'Article Teaser SWG Municipales 2026' ,&#10;                    'onsitead_format':'Sciences::Sciences::20260313.OBS113153_Dissuasion_Nucleaire_Pourquoi_Quelques_Kilos_D_Uranium_Peuvent_Peser_Sur_L_Equilibre_Mondial'});\"><br \/>\n                        <img loading=\"lazy\" width=\"164\" height=\"20\" src=\"data:image\/svg+xml,%3Csvg%20xmlns%3D%27http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%27%20fill%3D%22%23e4e4e4%22%20viewBox%3D%270%200%20282%2054%27%20width%3D%22282%22%20height%3D%2254%22%3E%3Cpath%20d%3D%27M0%200h282v54H0z%27%2F%3E%3C%2Fsvg%3E\" srcset=\"\/bucket\/resources\/web\/img\/paywalls\/e5ba8d4bf655f12518cc.jpg\" class=\"js-swg-placeholder\" alt=\"Subscribe with Google\" loading=\"lazy\" decoding=\"async\"\/><br \/>\n          <\/button>\n              <\/div>\n<\/p><\/div>\n<\/p><\/div>\n<\/div><\/div>\n<p><a href=\"https:\/\/www.nouvelobs.com\/sciences\/20260313.OBS113153\/dissuasion-nucleaire-pourquoi-quelques-kilos-d-uranium-peuvent-peser-sur-l-equilibre-mondial.html\">source<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Explosion d\u2019une bombe nucl\u00e9aire, illustration informatique.\u00a0MOPIC\/SCIENCE PHOTO LIBRARY VIA AFP Lire\u00a0plus\u00a0tard Google Actualit\u00e9s Partager Facebook Bluesky E-mail Copier le lien Envoyer S\u2019abonner pour lire Tout le monde est arm\u00e9 mais, en principe, personne ne tire. C\u2019est sur ce postulat que repose la dissuasion nucl\u00e9aire depuis la fin de la Seconde Guerre mondiale. Au fil des [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":124623,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"categories":[75],"tags":[],"coauthors":[77],"class_list":["post-124622","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-monde"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/pressactu.com\/index.php?rest_route=\/wp\/v2\/posts\/124622","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/pressactu.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/pressactu.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/pressactu.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/pressactu.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=124622"}],"version-history":[{"count":0,"href":"https:\/\/pressactu.com\/index.php?rest_route=\/wp\/v2\/posts\/124622\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/pressactu.com\/index.php?rest_route=\/wp\/v2\/media\/124623"}],"wp:attachment":[{"href":"https:\/\/pressactu.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=124622"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/pressactu.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=124622"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/pressactu.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=124622"},{"taxonomy":"author","embeddable":true,"href":"https:\/\/pressactu.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcoauthors&post=124622"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}