What anime is this?

Fullmetal Alchemist is a Japanese manga series written and illustrated by Hiromu Arakawa. It was serialized in Square Enix's Monthly Shōnen Gangan shōnen manga anthology magazine between July 2001 and June 2010; the publisher later collected the individual chapters into twenty-seven tankōbon volumes.

Fullmetal Alchemist Brotherhood, or FMAB, is the second adaptation of the original FMA anime series but is more faithful to the original manga. ... Brotherhood is longer than the original FMA with 64 episodes. Unlike the original anime series, the main character Alphonse in the Brotherhood is voiced by a girl.