{"version":"1.0","provider_name":"Policy Options","provider_url":"https:\/\/policyoptions.irpp.org\/fr\/","title":"National security lessons from Canadian history","type":"rich","width":600,"height":338,"html":"<blockquote class=\"wp-embedded-content\" data-secret=\"VhN9DhehQN\"><a href=\"https:\/\/policyoptions.irpp.org\/fr\/2017\/01\/national-security-lessons-from-canadian-history\/\">National security lessons from Canadian history<\/a><\/blockquote><iframe sandbox=\"allow-scripts\" security=\"restricted\" src=\"https:\/\/policyoptions.irpp.org\/fr\/2017\/01\/national-security-lessons-from-canadian-history\/embed\/#?secret=VhN9DhehQN\" width=\"600\" height=\"338\" title=\"&#8220;National security lessons from Canadian history&#8221; &#8212; Policy Options\" data-secret=\"VhN9DhehQN\" frameborder=\"0\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\" class=\"wp-embedded-content\"><\/iframe><script>\n\/*! This file is auto-generated *\/\n!function(d,l){\"use strict\";l.querySelector&&d.addEventListener&&\"undefined\"!=typeof URL&&(d.wp=d.wp||{},d.wp.receiveEmbedMessage||(d.wp.receiveEmbedMessage=function(e){var t=e.data;if((t||t.secret||t.message||t.value)&&!\/[^a-zA-Z0-9]\/.test(t.secret)){for(var s,r,n,a=l.querySelectorAll('iframe[data-secret=\"'+t.secret+'\"]'),o=l.querySelectorAll('blockquote[data-secret=\"'+t.secret+'\"]'),c=new RegExp(\"^https?:$\",\"i\"),i=0;i<o.length;i++)o[i].style.display=\"none\";for(i=0;i<a.length;i++)s=a[i],e.source===s.contentWindow&&(s.removeAttribute(\"style\"),\"height\"===t.message?(1e3<(r=parseInt(t.value,10))?r=1e3:~~r<200&&(r=200),s.height=r):\"link\"===t.message&&(r=new URL(s.getAttribute(\"src\")),n=new URL(t.value),c.test(n.protocol))&&n.host===r.host&&l.activeElement===s&&(d.top.location.href=t.value))}},d.addEventListener(\"message\",d.wp.receiveEmbedMessage,!1),l.addEventListener(\"DOMContentLoaded\",function(){for(var e,t,s=l.querySelectorAll(\"iframe.wp-embedded-content\"),r=0;r<s.length;r++)(t=(e=s[r]).getAttribute(\"data-secret\"))||(t=Math.random().toString(36).substring(2,12),e.src+=\"#?secret=\"+t,e.setAttribute(\"data-secret\",t)),e.contentWindow.postMessage({message:\"ready\",secret:t},\"*\")},!1)))}(window,document);\n<\/script>\n","thumbnail_url":"https:\/\/policyoptions.irpp.org\/wp-content\/uploads\/2025\/08\/WordPress-Image-pipeline-3.png","thumbnail_width":2000,"thumbnail_height":700,"description":"In 2017, Canadians are marking the 150th anniversary of Confederation. By reflecting on how Canadians in the 1860s tackled the national security challenges of their time, we can learn some lessons that can help improve policy in the present. The inhabitants of British North America in the 1860s faced an existential security threat: the prospect [&hellip;]"}