18. marca 1915 o 10:30 začala flotila Dohodových plavidiel vchádzať do úžiny. Kráľovské ná
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morníctvo
dúfalo, že sa mu podarí prestrieľať si cestu cez Dardanely a dostať sa
čo najbližšie k Istambulu. Briti však nepoznali pozíciu mín a časť ich
flotily vošla do mínového poľa. 14:00 hod. francúzsky semi-dreadnouth
Bouvet narazil na mínu, prevrhol sa a v priebehu dvoch minút sa potopil
aj so 600 mužmi na palube. O 1
6:10
narazili na mínu aj HMS Irresistible a HMS Inflexible. K lodi
Irresistible bola na pomoc vyslaná HMS Ocean, tá zobrala zvyšok posádky
lode, po tom čo bolo evidentné, že ju nebude možné odtiahnuť preč. Ale
okolo 19:00 Ocean narazil na mínu a začal sa potápať O 17:00 hod.
kontraadmirál de Robbeck nariadil prerušiť operáciu a stiahnuť sa z
prielivu. Celá akcia skončila veľkým neúspechom spojeneckého
námorníctva.
On 18 March
1915, the main
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attack was launched. The fleet, comprising 18 battleships
with a supporting array of cruisers and destroyers, sought to target
the narrowest point of the Dardanelles, where the straits are 1 mile
(1.6 km) wide. The French battleship Bouvet was sunk by a mine, causing
it to capsize with her crew of over 600 still aboard. Minesweepers
manned by civilians, under the constant fire of Ottoman shells,
retreated, leaving the minefields largely intact. HMS Irresistible and
HMS Inflexible were critically damaged by mines, although there was
confusion during the battle about the cause of the damage—some blamed
torpedoes. HMS Ocean, sent to rescue the Irresistible, was also damaged
by an explosion, and both ships eventually sank. The losses forced de
Robeck to sound the "general recall" to save what remained of his force