[Transatlantic Telegraph Cable Channels Under Breakdown Conditions]
subject: LTC, OTC, transatlantic cables, White House, 10 Downing Street, emergency planning, emergency communications, tripartite alerts
description: Duplicate of HY00383.
creator: Department of National Defence
source: Hydra Communications - Policy, RG24, 1250-36 Vol. 3, Library and Archives Canada (LAC)
publisher: Canada Declassified
date: 08/18/1964
rights: Canadian Crown
format: PDF
language: en
type: Text