https://securityhistorynetwork.com/2026/09/22/shn-lecture-in-the-wake-of-submarine-telegraphy-how-cables-made-the-deep-sea-knowable-and-strategic/The Security History Networken2026-09-22T11:16:48+00:00SHN Lecture: In the Wake of Submarine Telegraphy: How Cables Made the Deep Sea Knowable and StrategicFeatured, Lecture Series, Events, WWIhttps://securityhistorynetwork.com/wp-content/uploads/2026/09/hms-agamemnon-laying-the-atlantic-telegraph-cable-in-1858-a-whale-crosses-the-1f985c-1024.jpg?w=150