The gallipoli campaign became a stalemate what does that mean?

The Gallipoli campaign was a major war operation. Stalemate basically is a situation where not a single side could win each other. So, the sentence "The gallipoli campaign became a stalemate" means the the gallipoli war operation ended up at both sides reaching a dead end and not being able to win each other.

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i'm not sure i'm so sorry i will see what i can do