《从军北征》是唐代诗人李益的作品。此诗描绘出了一个壮阔又悲凉的行军场景，在哀怨的笛声中传递出深沉悲凉的征人思乡情。诗中展现的是一幅聚焦完全一致的画面，悲壮中显出凄苦，哀怨中显出无奈，征人的心理刻画得栩栩如生，具有含蕴不尽的抒情特色。

《从军北征》 李益

天山雪后海风寒，横笛遍吹行路难。
碛里征人三十万，一时回首月中看。

Marching North with the Army
Li Yi

Chilly is the sea wind blowing over Tianshan after snow;
Of all tunes, Tough-Going on the Road is most common on the flutes.
Three hundred thousand warriors trudging laboriously across the desert
Turn their heads and stare longingly at the moon above.