Elizabeth Braw discusses her book *The Undersea War*, highlighting the critical role of subsea cables in global digital connectivity and their vulnerability to sabotage. She addresses emerging threats, including potential Iranian tolls in the Strait of Hormuz and recent incidents in the Baltic Sea. Braw emphasizes Ireland’s status as a key cable junction and warns that its neglect of maritime security poses a significant risk. She advises Ireland to strengthen naval patrols and collaborate with regional partners like the Joint Expeditionary Force to protect these vital infrastructure assets.