Anime Profile: Hetalia: Axis Powers

Hetalia is an anime/webcomic about World Wars One and Two, in which each country is represented by a human character. Each episode is only five minutes long.

Hetalia: Axis Powers follows the antics of Italy, Germany, and Japan (the Axis) while they fight America, England, France, China, Russia, and Canada (the Allies). In the first episode Germany meets Italy and the Allies are introduced, but Japan does not come in until a few episodes later.

Even though the subject of the webcomic/anime is kind of dark, the series itself is rather lighthearted. Each country's character is mercilessly stereotyped, which makes the show all the more humorous (as long as you're not easily offended and do not take it seriously) and watching the characters interact is very entertaining.