Submarine cables and thick landline cables are of great (and unsung) value to America's dispersed military functioning - see:
http://sofrep.com/46403/south-koreas-hidden-strategic-value-for-the-u-s-in-afghanistan/?doing_wp_cron=1453598283.7720980644226074218750
http://sofrep.com/46403/south-koreas-hidden-strategic-value-for-the-u-s-in-afghanistan/?doing_wp_cron=1453598283.7720980644226074218750