(1915–16) Unsuccessful British-led operation against Turkey in World War I, intended to invade the Dardanelles strait, conquer the Gallipoli peninsula, and occupy Constantinople (Istanbul). In response to a Russian appeal to relieve pressure against its troops on the Caucasus front, Britain agreed to a naval action against Turkey at the Dardanelles. When bombardment alone failed, British and Australian and New Zealand (ANZAC) troops landed on the Gallipoli peninsula in April 1915, where they met strong resistance from Turkish forces under Mustafa Kemal Atatürk. After six months of standoff, the campaign was halted and Allied troops were skillfully withdrawn under difficult conditions. Allied casualties numbered about 250,000. The failed campaign gave the impression that the Allies were militarily inept, prompting the resignation of Winston Churchill, the chief promoter of the venture, as first lord of the admiralty.
Variants of DARDANELLES CAMPAIGN
Dardanelles Campaign or Gallipoli Campaign
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