24 май 1917 г. - British Convoy System Established

Описание:

The British Royal Navy introduces a newly created convoy system, whereby all merchant ships crossing the Atlantic Ocean would travel in groups under the protection of the British navy. A convoy of 10 to 50 merchant ships—along with, possibly, a troopship carrying arms and soldiers—might be escorted by a cruiser, six destroyers, 11 armed trawlers and a pair of torpedo boats with aerial reconnaissance equipment that could detect the movement of underwater submarines.

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