Forget everything you learned in history class, and imagine all the nations of the world as cute guys hanging out on a wildly inappropriate reality show. Now, toss in every stereotype ever and prepare to pledge allegiance to your favorite superpower in Hetalia!
Maybe you'll surrender to Italy's charms. He's a sweetie who's always got a noodle in his mouth and he's BFF with blue-eyed Germany and shy Japan. Sounds nice, right? Of course, their friendship sort of causes World War II, but is that really such a big deal? Not if it means those adorable allies France, America, and England will be stormin' the beach! No matter who comes out on top, victory is yours! Now ditch your textbooks and try to keep up, because history happens fast in Hetalia!
Based on a popular web-released manga series by Hidekazu Himaruya, this has been described as a "cynical gag" story set in Europe in the years between WW1 and WW2 (1918-1939), using exaggerated caricatures of the different nationalities as portrayed by a gaggle of bishōnen. For example, the Italia Veneziano character is into pasta and women. The Deutsche (German) bishi loves potatoes and sausages, and Nippon is an otaku boy. Installments of the manga have jumped back and forth in setting from the ancient times to modern-day geopolitics. The manga's title comes from the Japanese words for "useless" (hetare) and Italy (Italia).
The first two seasons of this show is called Hetalia: Axis Powers. For the third and fourth seasons of the anime, the title was changed to Hetalia: World Series. The fifth season the this title became Hetalia: A Beautiful World. The sixth season was called Hetalia: The World Twinkle.