1.0Daniel Crouch Rare Bookshttps://crouchrarebooks.com/zh-hans/rich600338<blockquote class="wp-embedded-content" data-secret="fypSjSCqPK"><a href="https://crouchrarebooks.com/zh-hans/featured_items/war-maps/">War Maps</a></blockquote><iframe sandbox="allow-scripts" security="restricted" src="https://crouchrarebooks.com/zh-hans/featured_items/war-maps/embed/#?secret=fypSjSCqPK" width="600" height="338" title="《 War Maps 》—Daniel Crouch Rare Books" data-secret="fypSjSCqPK" frameborder="0" marginwidth="0" marginheight="0" scrolling="no" class="wp-embedded-content"></iframe><script> /*! This file is auto-generated */ !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); //# sourceURL=https://crouchrarebooks.com/wp-includes/js/wp-embed.min.js </script> https://crouchrarebooks.com/wp-content/uploads/2022/03/2215_1H.jpg15001151Maps have always been indispensable tools of war. A clear knowledge of one’s own and one’s enemy’s territory allows leaders and rulers to strategise, plan and arrange resources around the land they strive to conquer or defend. On cartographical representations, obstacles can suddenly become obvious, as too can weak-points. In today’s world of live-mapping, frequent updates on everything from traffic to changes in the travel network have also been utilised by the military. For this reason both Apple and Google recently disabled live-mapping updates in Ukraine, so that the feature would not aid the Russian invasion.