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The first time the 10th Doctor regenerated ("The Stolen Earth") was because of a Dalek. Other than that, none, at least not directly. However, the Sisterhood of Karn regenerated the Eighth Doctor thanks to the Time War against the Daleks ("The Night of the Doctor"); the War Doctor regenerated because of being old and tired after the same war ("The Day of the Doctor"); and the Ninth Doctor gave his life to save Rose from the Heart of the TARDIS, which she used to destroy the Daleks ("The Parting of the Ways").