Attempted to defeat the Ottoman Empire/Turkey (allies of Germany)
The Dardanelles (a strait in Turkey)
Were meant to go straight to the Western Front but Churchill's new plan directed them to the island of Lemnos, then Gallipoli
Plan: break stalemate in the Western Front, weaken Germany using naval power, force Turkey out of the war, supply route for Russia to avoid surrendering
Result: landed at Ari Burnu instead of Gabe Tepe (2km north), failed due to underestimation of Turkish power, underwater mines and unforeseen gun shelling, attempted a land invasion, failed to depict the terrain and strength of Turkish defences, fired at Allies from all three sides, narrow beach surrounded by steep cliffs, failed to advance inlands